# What percent of 400 is 72?

Answer: 18 percent of 400 is 72

## Fastest method for calculating what percent of 400 is 72

Assume the unknown value is 'Y', and 72 of 400 can be written as:

Y = 72 / 400

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

Y = 72 / 400 x 100 / 100 = 18 / 100

Y = 18%

Answer: 18 percent of 400 is 72

If you want to use a calculator, simply enter 72÷400x100 and you will get your answer which is 18

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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% / 400 = Y% / 72

Drop the percentage marks to simplify your calculations: 100 / 400 = Y / 72

Multiply both sides by 72 to isolate Y on the right side of the equation: 72 ( 100 / 400 ) = Y

Computing the left side, we get: 18 = Y

This leaves us with our final answer: 18 percent of 400 is 72