-89.73% is the change from 808 to 83
Calculation steps:
[( 83 - 808 ) ÷ 808] x 100 = -89.73%
Formula
Percentage change = [(83 - 808) / 808] x 100
Subtract the new number by the original number
83 - 808 = -725
-725 ÷ 808 = -0.8972772277227723
-0.8972772277227723 x 100 = -89.73%