403.7% is the change from 135 to 680
Calculation steps:
[( 680 - 135 ) ÷ 135] x 100 = 403.7%
Formula
Percentage change = [(680 - 135) / 135] x 100
Subtract the new number by the original number
680 - 135 = 545
545 ÷ 135 = 4.037037037037037
4.037037037037037 x 100 = 403.7%