# What is 80 percent of 9 (80% of 9)?

Answer: 80 percent of 9 is 7.2

## Fastest method for calculating 80 percent of 9 (80% of 9)

Assume the unknown value is 'Y'

Y = 80 / 100

Y = 80 / 100 x 9

Y = 7.2

Answer: 80 percent of 9 is 7.2

If you want to use a calculator, simply enter 80÷100x9 and you will get your answer which is 7.2

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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% / 9 = 80% / Y

Drop the percentage marks to simplify your calculations: 100 / 9 = 80 / Y

Multiply both sides by Y to transfer it on the left side of the equation: Y ( 100 / 9 ) = 80

To isolate Y, multiply both sides by 9 / 100, we will have: Y = 80 ( 9 / 100 )

Computing the right side, we get: Y = 7.2

This leaves us with our final answer: 80% of 9 is 7.2