-32.33% is the change from 631 to 427
Calculation steps:
[( 427 - 631 ) ÷ 631] x 100 = -32.33%
Formula
Percentage change = [(427 - 631) / 631] x 100
Subtract the new number by the original number
427 - 631 = -204
-204 ÷ 631 = -0.3232963549920761
-0.3232963549920761 x 100 = -32.33%