# 120 is 15 percent of what number?

Answer: 120 is 15 percent of 800

## Fastest method for calculating 120 is 15 percent of what number

Assume the unknown value is 'Y'

120 = 15% x Y

120 = 15 / 100 x Y

Multiplying both sides by 100 and dividing both sides of the equation by 15 we will arrive at:

Y = 3 x 100 / 15

Y = 800%

Answer: 120 is 15 percent of 800

If you want to use a calculator, simply enter 120x100÷15 and you will get your answer which is 800

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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% / Y = 15% / 120

Drop the percentage marks to simplify your calculations: 100 / Y = 15 / 120

Multiply both sides by Y to move Y on the right side of the equation: 100 = ( 15 / 120 ) Y

Simplifying the right side, we get: 100 = 15 Y

Dividing both sides of the equation by 15, we will arrive at: 800 = Y

This leaves us with our final answer: 120 is 15 percent of 800