-32.81% is the change from 631 to 424
Calculation steps:
[( 424 - 631 ) ÷ 631] x 100 = -32.81%
Formula
Percentage change = [(424 - 631) / 631] x 100
Subtract the new number by the original number
424 - 631 = -207
-207 ÷ 631 = -0.32805071315372425
-0.32805071315372425 x 100 = -32.81%