-99% is the change from 802 to 8
Calculation steps:
[( 8 - 802 ) ÷ 802] x 100 = -99%
Formula
Percentage change = [(8 - 802) / 802] x 100
Subtract the new number by the original number
8 - 802 = -794
-794 ÷ 802 = -0.9900249376558603
-0.9900249376558603 x 100 = -99%