3.15% is the change from 127 to 131
Calculation steps:
[( 131 - 127 ) ÷ 127] x 100 = 3.15%
Formula
Percentage change = [(131 - 127) / 127] x 100
Subtract the new number by the original number
131 - 127 = 4
4 ÷ 127 = 0.031496062992125984
0.031496062992125984 x 100 = 3.15%