2.3% is the change from 564 to 577
Calculation steps:
[( 577 - 564 ) ÷ 564] x 100 = 2.3%
Formula
Percentage change = [(577 - 564) / 564] x 100
Subtract the new number by the original number
577 - 564 = 13
13 ÷ 564 = 0.02304964539007092
0.02304964539007092 x 100 = 2.3%