19.5% is the change from 559 to 668
Calculation steps:
[( 668 - 559 ) ÷ 559] x 100 = 19.5%
Formula
Percentage change = [(668 - 559) / 559] x 100
Subtract the new number by the original number
668 - 559 = 109
109 ÷ 559 = 0.19499105545617174
0.19499105545617174 x 100 = 19.5%