15.16% is the change from 831 to 957
Calculation steps:
[( 957 - 831 ) ÷ 831] x 100 = 15.16%
Formula
Percentage change = [(957 - 831) / 831] x 100
Subtract the new number by the original number
957 - 831 = 126
126 ÷ 831 = 0.15162454873646208
0.15162454873646208 x 100 = 15.16%