Want to calculate percentage growth rates (also known as the relative rates of change)? Learn how with this free video calculus lesson, which covers calculating the percentage growth rate using a logarithmic derivative, elasticity of demand and the relation between elasticity ...more
Could you use a little help figuring out how to find percentage composition? Watch this free video lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Intern ...more
One formula that you will run into in Calculus is calculating the percentage growth rate using a logarithmic derivative, elasticity of demand, relation among elasticity of demand and also revenue. In this video you will learn the different formulas that are used, methods of so ...more
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 267th installment in their series of digital spreadsheet magic tricks, you'll learn how to calcula ...more
Not sure exactly how to calculate a twenty percent tip for your waitress? Or how about how to figure out how much less your cost will be with that thirty percent off tag? Use these steps to calculate percentage, without a calculator. You Will Need: • A pen or pencil • Paper ...more
This easy to understand video gives us two ways to calculate a percentage using a calculator. The video first shows us how to use the percent key on the calculator using the example of figuring out how much to tip at a restaurant. We can also convert a percentage to decimals b ...more
This video presented by Cris Ippolite makes a comparison between flat files and relational databases made with FileMaker Pro 10. It starts by showing flat files, which programs like Microsoft Excel use. Flat files have a big disadvantage: they cannot communicate with other fil ...more
This video begins with teaching of percentage lesson. He is also teaching conversion of percentage to decimal and vise verse. This teaching is using advanced technology note pad when he goes on writing on pad that will display on screen. He is telling that percent 35% in decim ...more
This Excel Statistics series of video shows how to calculate proportions and percentages in Microsoft Excel. This video shows how to do percentage calculations using formulas in Microsoft Excel. To make a formula for a percentage, you need to first make a formula to calculate ...more
This video explains how to calculate percentages in your head. To calculate a percentage in your head, start by breaking the percentage off into smaller units. For example 25% is 10 + 10 + 5. 30% is 10, 10, and 10. Now you have numbers you can easily work with in your head. Fi ...more
In this tutorial, we learn how to calculate and add running percentages in Excel. First, write out your value and percentage into the different columns. Next, write the formula in the cell where you want the answer to appear. To have the answer appear, highlight the box and dr ...more
Do you need to brush up on your fraction and percentage skills or get ahead of the class in math? This video shows several different examples of how to calculate percentages by using fractions. Money is used as a frequent example because quarters and change are easier to figur ...more
Wondering how to calculate percentages from fractions? Just follow the few steps as given below. Firstly, take any fraction and multiply with 100. The resultant value that you get is nothing but the percentage itself. For example, let us take a fraction value - 1/2; we want ...more
The concept of percentage growth or decline is confusing to a lot of people. If you're one of those people, watch this video. It breaks down how percentage change and growth rates work and how you can calculate them from any pair of numbers.
In this tutorial the author explains of how to find percentages using examples. He explains that x percent of some number y is x multiplied by y and divided by 100. He goes on and explains this concept with numerous examples. He suggests a short cut to movie the decimal point ...more
Learn how to calculate percentages with this easy video tutorial! One of the easiest way to calculate percentages is as follows: Consider an example by taking 10% of 80. Then now first step includes the division of percentage by 100 we get 10/100 which gives 0.1. Then multip ...more
To calculate percentage composition we will take the example CO2 it stands for Carbon-Di-Oxide. It is the composition of Carbon and Oxygen. We have one carbon and its weight is 12.01 and 2 oxygen. So, we will multiply 2 with 16.00 which is the weight of the oxygen. C - 1* 12. ...more
As you might guess, one of the domains in which Microsoft Excel really excels is business math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the 42nd installment i ...more
This video will show you how to calculate the total savings on a transaction where there are two percentage series discounts and two dollar discounts. This video shows frugal bargain hunters how to simplify with an Excel sheet and find the total saving percentage. It teaches f ...more
Some savings plan pays interest 365 days in a year but you make deposit monthly. You can use Excel functions to calculate the maturity value of the of the monthly plan. To do this you have to use the nominal and effect functions before using the future value functions. First e ...more
This video shows you how to calculate the percentage yield in chemistry. To find the percentage yield, you will need to divide the actual yield by the theoretical yield. Then, multiply it by 100: i.e. % yield = actual yield/theoretical yield x 100. An actual yield is the amoun ...more
Video describing about how to calculate a sales tax price based on purchase price and sales tax percentage. There is one example which is described as below: Purchase price is 125.73 and sales tax is 6.5 %. To calculate a sales tax price we need to move sales tax percentage t ...more
Want to win the prize? Knowing a little math is the key to winning this popular contest. In this video, learn how to estimate correctly. You Will Need: • A jar filled with spherical or oblate spheroid candies • Calculator • Tape measure • Vernier calipers (optional) • Co ...more
There will be a time when the need to know how to convert a percent to a decimal will arise. Maybe it will be when trying to calculate a percentage discount on an item to be purchased. The item is 30% off, but what does that mean? How do you calculate the discount if the origi ...more
In this video, the instructor shows how to identify the percentage change using proportions. When a given quantity increases or decreases by certain amount then we can calculate the percentage change in the quantity, which can be either increase or decrease based on the new va ...more
As you might guess, one of the domains in which Microsoft Excel really excels is finance math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, part of his "Excel Fina ...more
New to Excel? Looking for a tip? How about a tip so mind-blowingly advanced as to qualify as a magic trick? You're in luck. In this Excel tutorial from ExcelIsFun, the 480th installment in their series of digital spreadsheet magic tricks, you'll learn how to calculate a percen ...more
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 609th installment in their series of digital spreadsheet magic tricks, you'll learn how to build a ...more
Having trouble figuring out percentages? If so, you'd be well served to give this free math lesson 100% of your attention. After watching it, you'll be able to answer questions like, "What's 25% of 38?" or "What's 38% of 25?" For more information on calculating percentages wit ...more
This is a video tutorial in the Electronics category where you are going to learn how to calculate compound interest using a TI-84 and solver. Press the apps button on the calculator and press enter to load the TVM Solver which is the 1st choice. Here the meaning of various no ...more
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 623rd installment in their series of digital spreadsheet magic tricks, you'll learn how to see the ...more
Learn how to calculate simple interest with step-by-step instructions using the formula I=prt. Simply defined, interest equals principle times rate times time. The video shows various examples of calculating this formula by plugging different variables into the equation. Altho ...more
New to Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this Excel tutorial from ExcelIsFun, the 194th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the SUM, VLOOKUP ...more
The concept of percentages may be a bit difficult to grasp for some beginner level learners. This video attempts to explain the concept of percentages in an easy to understand way. The concept of percentages is explained by using 10 percentage as a base - which of course has ...more
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 611th installment in their series of digital spreadsheet magic tricks, you'll learn how to create ...more
The first problem that is show is exponential decay. First you will need to create a table with hours and substance left. The next step is to find the trend by noting that we are left with a certain percentage of the substance. One you have the trend you will use this to calcu ...more
In this video tutorial the instructor shows how to derive the formula to compute interest compounded annually. He starts with explaining the basic concepts like principle which is the amount you borrow and the rate of interest or annual percentage rate (APR), which is the rate ...more
This video is about Level 2 atomic concepts, specifically the Pennium Lab. This helps you understand how atomic masses are derived for the periodic table. This teacher demonstrates how to do the calculation. He first reviews the Isotopes as they are different masses of the sam ...more
Whether you're shopping for deals, need help with a little math, or any number of other occasions, it's a valuable skill to know how to quickly figure out a percentage given two numbers. Let's say you're shopping and you come across a pair of shoes that are normally $45, but ...more
I just found out that I might be expected to tip all the vendors... on top of the exorbitant fee they charge! Sigh... Here is a great tipping cheat sheet courtesy of theknot.com. When you're already dipping deep into your (or your parents') savings for so many wedding expense ...more
When it's time to calculate a tip at a restaurant or bar, I usually try some mental math at first, but sometimes I resort to opening the Calculator quickly from the Control Center on my iPhone and doing a quick calculation. But with Apple's Shortcuts app, there's an even easie ...more
You can brew your own beer on the stove, in a keg, or even inside a pumpkin, but those all look boring next to The Wobbly Boot Pico Brewery, the most sophisticated home-brewing system you'll ever see. Built by Ben_B, an engineer at National Instruments, the brewery sits on a s ...more
Google Lens can perform many different tasks with your smartphone's camera thanks to advanced machine learning, such as foreign text translations, landmark identification, and business cards to contacts conversion, to name a few. With this year's Google I/O conference, we have ...more
It seems like everyone is getting in shape these days (or at least trying to improve their fitness), and as a result, there's an endless supply of fitness trackers and smartwatches hitting the market. This is all very wonderful, unless of course, you're broke and can barely af ...more
TouchDevelop is a browser-based programming tool that allows anyone to build your own Windows 8 apps directly from any touchscreen device, including iPad, iPhone, Windows Phone, Android, PC and Macs. Once the script is created and the app proves to work, it can be placed in th ...more
The transcribing app can be an invaluable tool, especially if you're a student or are in a profession that relies on audio journals or interviews. These apps can convert important recordings like lectures and meetings into text for you to carefully read through to better compr ...more
Apple released iOS 13.0 on Sept. 19 and announced on the same day the release of iOS 13.1 on Sept. 30. But that deadline was pushed up to Sept. 24, and that's why we have 13.1 just five days after 13.0. But that's good news since we don't have to wait any longer for some of th ...more
I've covered augmented reality apps for about three years now and the most useful mobile app I've encountered over that time is Google Lens. In brief, Google Lens can recognize and interact with text and identify a wide spectrum of objects, turning your smartphone's camera in ...more
It's not easy staying fit and healthy these days with addicting phones, oversized portions, and long workdays, to name just a few things. To succeed, it takes work, commitment, and an understanding of your mind and body — and your iPhone can help you with some of that. While A ...more
Not all weather sources are equal. When you're looking at the forecast, you hope that it's at least semi-accurate so you can plan the week and days ahead, but many sources are unreliable. And with the famous Dark Sky API shutting down on March 31, 2023, you'll need an alternat ...more
The private automobile has been an intrinsic part of our lives for around a hundred years. But over the last decade, car sharing has gained a very small but growing part of the mobility market. The more recent rise of companies like Uber and Lyft is witness to a more dramatic ...more
Apple has a few exciting surprises for you in its latest iOS 16 and iPadOS 16 software updates. Released on Thursday, May 18, version 16.5 includes new features, bug fixes, and security patches, and there are even hints of some big things coming in future software updates for ...more
Flight disruptions can cost billions of dollars, but most modern commercial flights rely on air traffic control systems that harbor serious vulnerabilities. The Federal Aviation Administration uses an infrastructure called NextGen, which relies on Automatic Dependent Surveilla ...more