15.6% is the change from 577 to 667
Calculation steps:
[( 667 - 577 ) ÷ 577] x 100 = 15.6%
Formula
Percentage change = [(667 - 577) / 577] x 100
Subtract the new number by the original number
667 - 577 = 90
90 ÷ 577 = 0.1559792027729636
0.1559792027729636 x 100 = 15.6%