# 100 is what percent of 125?

Answer: 100 is 80 percent of 125

## Fastest method for calculating 100 is what percent of 125

Assume the unknown value is 'Y', and 100 of 125 can be written as:

Y = 100 / 125

By multiplying both numerator and denominator by 100 we will get:

Y = 100 / 125 x 100 / 100 = 80 / 100

Y = 80%

Answer: 100 is 80 percent of 125

If you want to use a calculator, simply enter 100÷125x100 and you will get your answer which is 80

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## Have time and want to learn the details?

Let's solve the equation for Y by first rewriting it as: 100% / 125 = Y% / 100

Drop the percentage marks to simplify your calculations: 100 / 125 = Y / 100

Multiply both sides by 100 to isolate Y on the right side of the equation: 100 ( 100 / 125 ) = Y

Computing the left side, we get: 80 = Y

This leaves us with our final answer: 100 is 80 percent of 125