-84.73% is the change from 812 to 124
Calculation steps:
[( 124 - 812 ) ÷ 812] x 100 = -84.73%
Formula
Percentage change = [(124 - 812) / 812] x 100
Subtract the new number by the original number
124 - 812 = -688
-688 ÷ 812 = -0.8472906403940886
-0.8472906403940886 x 100 = -84.73%