-24.25% is the change from 631 to 478
Calculation steps:
[( 478 - 631 ) ÷ 631] x 100 = -24.25%
Formula
Percentage change = [(478 - 631) / 631] x 100
Subtract the new number by the original number
478 - 631 = -153
-153 ÷ 631 = -0.24247226624405704
-0.24247226624405704 x 100 = -24.25%