10150% is the change from 8 to 820
Calculation steps:
[( 820 - 8 ) ÷ 8] x 100 = 10150%
Formula
Percentage change = [(820 - 8) / 8] x 100
Subtract the new number by the original number
820 - 8 = 812
812 ÷ 8 = 101.5
101.5 x 100 = 10150%
Example