39.62% is the change from 631 to 881
Calculation steps:
[( 881 - 631 ) ÷ 631] x 100 = 39.62%
Formula
Percentage change = [(881 - 631) / 631] x 100
Subtract the new number by the original number
881 - 631 = 250
250 ÷ 631 = 0.39619651347068147
0.39619651347068147 x 100 = 39.62%