31% is the change from 558 to 731
Calculation steps:
[( 731 - 558 ) ÷ 558] x 100 = 31%
Formula
Percentage change = [(731 - 558) / 558] x 100
Subtract the new number by the original number
731 - 558 = 173
173 ÷ 558 = 0.3100358422939068
0.3100358422939068 x 100 = 31%