402.94% is the change from 136 to 684
Calculation steps:
[( 684 - 136 ) ÷ 136] x 100 = 402.94%
Formula
Percentage change = [(684 - 136) / 136] x 100
Subtract the new number by the original number
684 - 136 = 548
548 ÷ 136 = 4.029411764705882
4.029411764705882 x 100 = 402.94%