19.46% is the change from 555 to 663
Calculation steps:
[( 663 - 555 ) ÷ 555] x 100 = 19.46%
Formula
Percentage change = [(663 - 555) / 555] x 100
Subtract the new number by the original number
663 - 555 = 108
108 ÷ 555 = 0.1945945945945946
0.1945945945945946 x 100 = 19.46%