1600% is the change from 8 to 136
Calculation steps:
[( 136 - 8 ) ÷ 8] x 100 = 1600%
Formula
Percentage change = [(136 - 8) / 8] x 100
Subtract the new number by the original number
136 - 8 = 128
128 ÷ 8 = 16
16 x 100 = 1600%
Example