-61.24% is the change from 823 to 319
Calculation steps:
[( 319 - 823 ) ÷ 823] x 100 = -61.24%
Formula
Percentage change = [(319 - 823) / 823] x 100
Subtract the new number by the original number
319 - 823 = -504
-504 ÷ 823 = -0.6123936816524909
-0.6123936816524909 x 100 = -61.24%