# What is 25 percent of 21 (25% of 21)?

Answer: 25 percent of 21 is 5.25

## Fastest method for calculating 25 percent of 21 (25% of 21)

Assume the unknown value is 'Y'

Y = 25 / 100

Y = 25 / 100 x 21

Y = 5.25

Answer: 25 percent of 21 is 5.25

If you want to use a calculator, simply enter 25÷100x21 and you will get your answer which is 5.25

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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% / 21 = 25% / Y

Drop the percentage marks to simplify your calculations: 100 / 21 = 25 / Y

Multiply both sides by Y to transfer it on the left side of the equation: Y ( 100 / 21 ) = 25

To isolate Y, multiply both sides by 21 / 100, we will have: Y = 25 ( 21 / 100 )

Computing the right side, we get: Y = 5.25

This leaves us with our final answer: 25% of 21 is 5.25