9.54% is the change from 566 to 620
Calculation steps:
[( 620 - 566 ) ÷ 566] x 100 = 9.54%
Formula
Percentage change = [(620 - 566) / 566] x 100
Subtract the new number by the original number
620 - 566 = 54
54 ÷ 566 = 0.09540636042402827
0.09540636042402827 x 100 = 9.54%