20.58% is the change from 554 to 668
Calculation steps:
[( 668 - 554 ) ÷ 554] x 100 = 20.58%
Formula
Percentage change = [(668 - 554) / 554] x 100
Subtract the new number by the original number
668 - 554 = 114
114 ÷ 554 = 0.20577617328519857
0.20577617328519857 x 100 = 20.58%