15.9% is the change from 717 to 831
Calculation steps:
[( 831 - 717 ) ÷ 717] x 100 = 15.9%
Formula
Percentage change = [(831 - 717) / 717] x 100
Subtract the new number by the original number
831 - 717 = 114
114 ÷ 717 = 0.1589958158995816
0.1589958158995816 x 100 = 15.9%