15.93% is the change from 113 to 131
Calculation steps:
[( 131 - 113 ) ÷ 113] x 100 = 15.93%
Formula
Percentage change = [(131 - 113) / 113] x 100
Subtract the new number by the original number
131 - 113 = 18
18 ÷ 113 = 0.1592920353982301
0.1592920353982301 x 100 = 15.93%