9975% is the change from 8 to 806
Calculation steps:
[( 806 - 8 ) ÷ 8] x 100 = 9975%
Formula
Percentage change = [(806 - 8) / 8] x 100
Subtract the new number by the original number
806 - 8 = 798
798 ÷ 8 = 99.75
99.75 x 100 = 9975%
Example