180% is the change from 90 to 252
Calculation steps:
[( 252 - 90 ) ÷ 90] x 100 = 180%
Formula
Percentage change = [(252 - 90) / 90] x 100
Subtract the new number by the original number
252 - 90 = 162
162 ÷ 90 = 1.8
1.8 x 100 = 180%
Example