18.38% is the change from 702 to 831
Calculation steps:
[( 831 - 702 ) ÷ 702] x 100 = 18.38%
Formula
Percentage change = [(831 - 702) / 702] x 100
Subtract the new number by the original number
831 - 702 = 129
129 ÷ 702 = 0.18376068376068377
0.18376068376068377 x 100 = 18.38%