-20.15% is the change from 824 to 658
Calculation steps:
[( 658 - 824 ) ÷ 824] x 100 = -20.15%
Formula
Percentage change = [(658 - 824) / 824] x 100
Subtract the new number by the original number
658 - 824 = -166
-166 ÷ 824 = -0.20145631067961164
-0.20145631067961164 x 100 = -20.15%