14.81% is the change from 27 to 31
Calculation steps:
[( 31 - 27 ) ÷ 27] x 100 = 14.81%
Formula
Percentage change = [(31 - 27) / 27] x 100
Subtract the new number by the original number
31 - 27 = 4
4 ÷ 27 = 0.14814814814814814
0.14814814814814814 x 100 = 14.81%