11.79% is the change from 577 to 645
Calculation steps:
[( 645 - 577 ) ÷ 577] x 100 = 11.79%
Formula
Percentage change = [(645 - 577) / 577] x 100
Subtract the new number by the original number
645 - 577 = 68
68 ÷ 577 = 0.11785095320623917
0.11785095320623917 x 100 = 11.79%