19% is the change from 558 to 664
Calculation steps:
[( 664 - 558 ) ÷ 558] x 100 = 19%
Formula
Percentage change = [(664 - 558) / 558] x 100
Subtract the new number by the original number
664 - 558 = 106
106 ÷ 558 = 0.18996415770609318
0.18996415770609318 x 100 = 19%