-21.91% is the change from 808 to 631
Calculation steps:
[( 631 - 808 ) ÷ 808] x 100 = -21.91%
Formula
Percentage change = [(631 - 808) / 808] x 100
Subtract the new number by the original number
631 - 808 = -177
-177 ÷ 808 = -0.21905940594059406
-0.21905940594059406 x 100 = -21.91%