# What is 5 percent of 400 (5% of 400)?

Answer: 5 percent of 400 is 20

## Fastest method for calculating 5 percent of 400 (5% of 400)

Assume the unknown value is 'Y'

Y = 5 / 100

Y = 5 / 100 x 400

Y = 20

Answer: 5 percent of 400 is 20

If you want to use a calculator, simply enter 5÷100x400 and you will get your answer which is 20

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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 = 5% / Y

Drop the percentage marks to simplify your calculations: 100 / 400 = 5 / Y

Multiply both sides by Y to transfer it on the left side of the equation: Y ( 100 / 400 ) = 5

To isolate Y, multiply both sides by 400 / 100, we will have: Y = 5 ( 400 / 100 )

Computing the right side, we get: Y = 20

This leaves us with our final answer: 5% of 400 is 20