12.88% is the change from 831 to 938
Calculation steps:
[( 938 - 831 ) ÷ 831] x 100 = 12.88%
Formula
Percentage change = [(938 - 831) / 831] x 100
Subtract the new number by the original number
938 - 831 = 107
107 ÷ 831 = 0.12876052948255115
0.12876052948255115 x 100 = 12.88%