-87.56% is the change from 796 to 99
Calculation steps:
[( 99 - 796 ) ÷ 796] x 100 = -87.56%
Formula
Percentage change = [(99 - 796) / 796] x 100
Subtract the new number by the original number
99 - 796 = -697
-697 ÷ 796 = -0.8756281407035176
-0.8756281407035176 x 100 = -87.56%