15.16% is the change from 554 to 638
Calculation steps:
[( 638 - 554 ) ÷ 554] x 100 = 15.16%
Formula
Percentage change = [(638 - 554) / 554] x 100
Subtract the new number by the original number
638 - 554 = 84
84 ÷ 554 = 0.15162454873646208
0.15162454873646208 x 100 = 15.16%