-91.38% is the change from 812 to 70
Calculation steps:
[( 70 - 812 ) ÷ 812] x 100 = -91.38%
Formula
Percentage change = [(70 - 812) / 812] x 100
Subtract the new number by the original number
70 - 812 = -742
-742 ÷ 812 = -0.9137931034482759
-0.9137931034482759 x 100 = -91.38%