-24.35% is the change from 842 to 637
Calculation steps:
[( 637 - 842 ) ÷ 842] x 100 = -24.35%
Formula
Percentage change = [(637 - 842) / 842] x 100
Subtract the new number by the original number
637 - 842 = -205
-205 ÷ 842 = -0.24346793349168647
-0.24346793349168647 x 100 = -24.35%