-22.82% is the change from 824 to 636
Calculation steps:
[( 636 - 824 ) ÷ 824] x 100 = -22.82%
Formula
Percentage change = [(636 - 824) / 824] x 100
Subtract the new number by the original number
636 - 824 = -188
-188 ÷ 824 = -0.22815533980582525
-0.22815533980582525 x 100 = -22.82%