54.37% is the change from 561 to 866
Calculation steps:
[( 866 - 561 ) ÷ 561] x 100 = 54.37%
Formula
Percentage change = [(866 - 561) / 561] x 100
Subtract the new number by the original number
866 - 561 = 305
305 ÷ 561 = 0.5436720142602496
0.5436720142602496 x 100 = 54.37%