3.1% is the change from 709 to 731
Calculation steps:
[( 731 - 709 ) ÷ 709] x 100 = 3.1%
Formula
Percentage change = [(731 - 709) / 709] x 100
Subtract the new number by the original number
731 - 709 = 22
22 ÷ 709 = 0.031029619181946404
0.031029619181946404 x 100 = 3.1%