-81.41% is the change from 823 to 153
Calculation steps:
[( 153 - 823 ) ÷ 823] x 100 = -81.41%
Formula
Percentage change = [(153 - 823) / 823] x 100
Subtract the new number by the original number
153 - 823 = -670
-670 ÷ 823 = -0.8140947752126367
-0.8140947752126367 x 100 = -81.41%