-81.28% is the change from 812 to 152
Calculation steps:
[( 152 - 812 ) ÷ 812] x 100 = -81.28%
Formula
Percentage change = [(152 - 812) / 812] x 100
Subtract the new number by the original number
152 - 812 = -660
-660 ÷ 812 = -0.812807881773399
-0.812807881773399 x 100 = -81.28%