11.91% is the change from 554 to 620
Calculation steps:
[( 620 - 554 ) ÷ 554] x 100 = 11.91%
Formula
Percentage change = [(620 - 554) / 554] x 100
Subtract the new number by the original number
620 - 554 = 66
66 ÷ 554 = 0.11913357400722022
0.11913357400722022 x 100 = 11.91%