950% is the change from 8 to 84
Calculation steps:
[( 84 - 8 ) ÷ 8] x 100 = 950%
Formula
Percentage change = [(84 - 8) / 8] x 100
Subtract the new number by the original number
84 - 8 = 76
76 ÷ 8 = 9.5
9.5 x 100 = 950%
Example