9950% is the change from 8 to 804
Calculation steps:
[( 804 - 8 ) ÷ 8] x 100 = 9950%
Formula
Percentage change = [(804 - 8) / 8] x 100
Subtract the new number by the original number
804 - 8 = 796
796 ÷ 8 = 99.5
99.5 x 100 = 9950%
Example