-89.29% is the change from 812 to 87
Calculation steps:
[( 87 - 812 ) ÷ 812] x 100 = -89.29%
Formula
Percentage change = [(87 - 812) / 812] x 100
Subtract the new number by the original number
87 - 812 = -725
-725 ÷ 812 = -0.8928571428571429
-0.8928571428571429 x 100 = -89.29%