-79.71% is the change from 823 to 167
Calculation steps:
[( 167 - 823 ) ÷ 823] x 100 = -79.71%
Formula
Percentage change = [(167 - 823) / 823] x 100
Subtract the new number by the original number
167 - 823 = -656
-656 ÷ 823 = -0.7970838396111786
-0.7970838396111786 x 100 = -79.71%