2.85% is the change from 561 to 577
Calculation steps:
[( 577 - 561 ) ÷ 561] x 100 = 2.85%
Formula
Percentage change = [(577 - 561) / 561] x 100
Subtract the new number by the original number
577 - 561 = 16
16 ÷ 561 = 0.0285204991087344
0.0285204991087344 x 100 = 2.85%