19.86% is the change from 554 to 664
Calculation steps:
[( 664 - 554 ) ÷ 554] x 100 = 19.86%
Formula
Percentage change = [(664 - 554) / 554] x 100
Subtract the new number by the original number
664 - 554 = 110
110 ÷ 554 = 0.19855595667870035
0.19855595667870035 x 100 = 19.86%