-21.22% is the change from 801 to 631
Calculation steps:
[( 631 - 801 ) ÷ 801] x 100 = -21.22%
Formula
Percentage change = [(631 - 801) / 801] x 100
Subtract the new number by the original number
631 - 801 = -170
-170 ÷ 801 = -0.21223470661672908
-0.21223470661672908 x 100 = -21.22%