-99% is the change from 801 to 8
Calculation steps:
[( 8 - 801 ) ÷ 801] x 100 = -99%
Formula
Percentage change = [(8 - 801) / 801] x 100
Subtract the new number by the original number
8 - 801 = -793
-793 ÷ 801 = -0.9900124843945068
-0.9900124843945068 x 100 = -99%