# Percent of Increase: 90 to 99 {(99-90)/90}x100=(?). 90 to 99 percent increase provides the comprehensive information on how to find what is the percent of increase from 90 to 99.

90 to 99 percent increase:
(99 - 90)/90 x 100 = (?)
= 9/90 x 100
= 10%
(99 - 90)/90 x 100 = 10%
Hence,
the percent of increase from 90 to 99 is 10%

where,
90 is the base or reference quantity,
99 is the relative or increased quantity,
9 is the difference between base and increased quantity,
10% is the percent increase.

## How-to: What is the percent of increase from 90 to 99?

The result of difference between the increased quantity 99 and reference quantity 90 divided by the reference quantity 90, multiplied with 100 is the percent of increase from 90 to 99. The below is the step-by-step work shows how to find what is the percent of increase from 90 to 99 by using the mathematical formula. step 1 Observe the input parameters, values and what to be found:

Input values:
Base or reference value X = 90
Increased or relative value Y = 99

What to be found:
Find the percent increase from 90 to 99.
(99 - 90)/60 x 100 = (?)%

step 2 Find the difference between increased quantity 99 and reference quantity 90:
99 - 90 = 9

step 3 Divide the difference 9 by the reference quantity 90, and multiply the result with 100:
9/90 x 100 = 10%

Hence,
10% is the percent of increase from 90 to 99. 