129.63% is the change from 135 to 310
Calculation steps:
[( 310 - 135 ) ÷ 135] x 100 = 129.63%
Formula
Percentage change = [(310 - 135) / 135] x 100
Subtract the new number by the original number
310 - 135 = 175
175 ÷ 135 = 1.2962962962962963
1.2962962962962963 x 100 = 129.63%