-81.43% is the change from 824 to 153
Calculation steps:
[( 153 - 824 ) ÷ 824] x 100 = -81.43%
Formula
Percentage change = [(153 - 824) / 824] x 100
Subtract the new number by the original number
153 - 824 = -671
-671 ÷ 824 = -0.8143203883495146
-0.8143203883495146 x 100 = -81.43%