-87.59% is the change from 822 to 102
Calculation steps:
[( 102 - 822 ) ÷ 822] x 100 = -87.59%
Formula
Percentage change = [(102 - 822) / 822] x 100
Subtract the new number by the original number
102 - 822 = -720
-720 ÷ 822 = -0.8759124087591241
-0.8759124087591241 x 100 = -87.59%