-82.5% is the change from 823 to 144
Calculation steps:
[( 144 - 823 ) ÷ 823] x 100 = -82.5%
Formula
Percentage change = [(144 - 823) / 823] x 100
Subtract the new number by the original number
144 - 823 = -679
-679 ÷ 823 = -0.8250303766707169
-0.8250303766707169 x 100 = -82.5%