18.72% is the change from 486 to 577
Calculation steps:
[( 577 - 486 ) ÷ 486] x 100 = 18.72%
Formula
Percentage change = [(577 - 486) / 486] x 100
Subtract the new number by the original number
577 - 486 = 91
91 ÷ 486 = 0.18724279835390947
0.18724279835390947 x 100 = 18.72%