-81.53% is the change from 812 to 150
Calculation steps:
[( 150 - 812 ) ÷ 812] x 100 = -81.53%
Formula
Percentage change = [(150 - 812) / 812] x 100
Subtract the new number by the original number
150 - 812 = -662
-662 ÷ 812 = -0.8152709359605911
-0.8152709359605911 x 100 = -81.53%