12.03% is the change from 831 to 931
Calculation steps:
[( 931 - 831 ) ÷ 831] x 100 = 12.03%
Formula
Percentage change = [(931 - 831) / 831] x 100
Subtract the new number by the original number
931 - 831 = 100
100 ÷ 831 = 0.12033694344163658
0.12033694344163658 x 100 = 12.03%