1012.5% is the change from 8 to 89
Calculation steps:
[( 89 - 8 ) ÷ 8] x 100 = 1012.5%
Formula
Percentage change = [(89 - 8) / 8] x 100
Subtract the new number by the original number
89 - 8 = 81
81 ÷ 8 = 10.125
10.125 x 100 = 1012.5%
Example