15.27% is the change from 131 to 151
Calculation steps:
[( 151 - 131 ) ÷ 131] x 100 = 15.27%
Formula
Percentage change = [(151 - 131) / 131] x 100
Subtract the new number by the original number
151 - 131 = 20
20 ÷ 131 = 0.15267175572519084
0.15267175572519084 x 100 = 15.27%