18.71% is the change from 700 to 831
Calculation steps:
[( 831 - 700 ) ÷ 700] x 100 = 18.71%
Formula
Percentage change = [(831 - 700) / 700] x 100
Subtract the new number by the original number
831 - 700 = 131
131 ÷ 700 = 0.18714285714285714
0.18714285714285714 x 100 = 18.71%