25.34% is the change from 663 to 831
Calculation steps:
[( 831 - 663 ) ÷ 663] x 100 = 25.34%
Formula
Percentage change = [(831 - 663) / 663] x 100
Subtract the new number by the original number
831 - 663 = 168
168 ÷ 663 = 0.25339366515837103
0.25339366515837103 x 100 = 25.34%