7.45% is the change from 577 to 620
Calculation steps:
[( 620 - 577 ) ÷ 577] x 100 = 7.45%
Formula
Percentage change = [(620 - 577) / 577] x 100
Subtract the new number by the original number
620 - 577 = 43
43 ÷ 577 = 0.07452339688041594
0.07452339688041594 x 100 = 7.45%