107.41% is the change from 135 to 280
Calculation steps:
[( 280 - 135 ) ÷ 135] x 100 = 107.41%
Formula
Percentage change = [(280 - 135) / 135] x 100
Subtract the new number by the original number
280 - 135 = 145
145 ÷ 135 = 1.0740740740740742
1.0740740740740742 x 100 = 107.41%