31.06% is the change from 631 to 827
Calculation steps:
[( 827 - 631 ) ÷ 631] x 100 = 31.06%
Formula
Percentage change = [(827 - 631) / 631] x 100
Subtract the new number by the original number
827 - 631 = 196
196 ÷ 631 = 0.31061806656101426
0.31061806656101426 x 100 = 31.06%