When calculating a declining sales figure spanning multiple years, you need to calculate two percentages. The straight-line method calculates your overall decline, but this doesn't paint the entire ...

How to calculate percentages is easier than you think. Quick, what’s 36% of 25? Or how about 250% of 20? Learn a quick and dirty tip to help you calculate all of those pesky percentages in your head.

Microsoft Excel doesn't inherently possess a percentage function, but a simple formula can calculate the required figure for your business. However, Excel cannot recognize a percentage formula, which ...

When using chemical formula it is possible to calculate the percentage composition of the chemical. This can be useful when extracting metals from ores or when making fertilisers for specific plants.

The dividend yield shows the percentage of share price a company pays out in dividends each year. The dividend yield formula is your ticket to better investment returns. If you’ve been gauging your ...

Scientific American presents Math Dude by Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies. Long time math fans may remember our first foray into the world ...