39.61% is the change from 558 to 779
Calculation steps:
[( 779 - 558 ) ÷ 558] x 100 = 39.61%
Formula
Percentage change = [(779 - 558) / 558] x 100
Subtract the new number by the original number
779 - 558 = 221
221 ÷ 558 = 0.3960573476702509
0.3960573476702509 x 100 = 39.61%