135% is the change from 80 to 188
Calculation steps:
[( 188 - 80 ) ÷ 80] x 100 = 135%
Formula
Percentage change = [(188 - 80) / 80] x 100
Subtract the new number by the original number
188 - 80 = 108
108 ÷ 80 = 1.35
1.35 x 100 = 135%
Example