10.57% is the change from 577 to 638
Calculation steps:
[( 638 - 577 ) ÷ 577] x 100 = 10.57%
Formula
Percentage change = [(638 - 577) / 577] x 100
Subtract the new number by the original number
638 - 577 = 61
61 ÷ 577 = 0.10571923743500866
0.10571923743500866 x 100 = 10.57%