14.56% is the change from 577 to 661
Calculation steps:
[( 661 - 577 ) ÷ 577] x 100 = 14.56%
Formula
Percentage change = [(661 - 577) / 577] x 100
Subtract the new number by the original number
661 - 577 = 84
84 ÷ 577 = 0.14558058925476602
0.14558058925476602 x 100 = 14.56%