1150% is the change from 8 to 100
Calculation steps:
[( 100 - 8 ) ÷ 8] x 100 = 1150%
Formula
Percentage change = [(100 - 8) / 8] x 100
Subtract the new number by the original number
100 - 8 = 92
92 ÷ 8 = 11.5
11.5 x 100 = 1150%
Example