-20.63% is the change from 824 to 654
Calculation steps:
[( 654 - 824 ) ÷ 824] x 100 = -20.63%
Formula
Percentage change = [(654 - 824) / 824] x 100
Subtract the new number by the original number
654 - 824 = -170
-170 ÷ 824 = -0.20631067961165048
-0.20631067961165048 x 100 = -20.63%