Female hairdresser, blonde hair: If we have promotions in the salon, say like 20 percent off your haircut, I'd then need to work out exactly what 20 percent off the haircut is. Male chef, blonde hair, ...

One way to find a percentage of an amount is to use 1%, 10% and 50% as building blocks. 1%, 10% and 50% can be used as building blocks for working out percentages in your head. 1% is 1⁄100. Work out 1 ...

Excel percentage formulas can get you through problems large and small every day—from determining sales tax (and tips) to calculating increases and decreases. We’ll walk through several examples below ...