28.53% is the change from 631 to 811
Calculation steps:
[( 811 - 631 ) ÷ 631] x 100 = 28.53%
Formula
Percentage change = [(811 - 631) / 631] x 100
Subtract the new number by the original number
811 - 631 = 180
180 ÷ 631 = 0.28526148969889065
0.28526148969889065 x 100 = 28.53%