31.28% is the change from 633 to 831
Calculation steps:
[( 831 - 633 ) ÷ 633] x 100 = 31.28%
Formula
Percentage change = [(831 - 633) / 633] x 100
Subtract the new number by the original number
831 - 633 = 198
198 ÷ 633 = 0.3127962085308057
0.3127962085308057 x 100 = 31.28%