-21.42% is the change from 803 to 631
Calculation steps:
[( 631 - 803 ) ÷ 803] x 100 = -21.42%
Formula
Percentage change = [(631 - 803) / 803] x 100
Subtract the new number by the original number
631 - 803 = -172
-172 ÷ 803 = -0.21419676214196762
-0.21419676214196762 x 100 = -21.42%