40.55% is the change from 397 to 558
Calculation steps:
[( 558 - 397 ) ÷ 397] x 100 = 40.55%
Formula
Percentage change = [(558 - 397) / 397] x 100
Subtract the new number by the original number
558 - 397 = 161
161 ÷ 397 = 0.40554156171284633
0.40554156171284633 x 100 = 40.55%