580% is the change from 20 to 136
Calculation steps:
[( 136 - 20 ) ÷ 20] x 100 = 580%
Formula
Percentage change = [(136 - 20) / 20] x 100
Subtract the new number by the original number
136 - 20 = 116
116 ÷ 20 = 5.8
5.8 x 100 = 580%
Example