85.19% is the change from 135 to 250
Calculation steps:
[( 250 - 135 ) ÷ 135] x 100 = 85.19%
Formula
Percentage change = [(250 - 135) / 135] x 100
Subtract the new number by the original number
250 - 135 = 115
115 ÷ 135 = 0.8518518518518519
0.8518518518518519 x 100 = 85.19%