634.56% is the change from 136 to 999
Calculation steps:
[( 999 - 136 ) ÷ 136] x 100 = 634.56%
Formula
Percentage change = [(999 - 136) / 136] x 100
Subtract the new number by the original number
999 - 136 = 863
863 ÷ 136 = 6.345588235294118
6.345588235294118 x 100 = 634.56%