8.91% is the change from 561 to 611
Calculation steps:
[( 611 - 561 ) ÷ 561] x 100 = 8.91%
Formula
Percentage change = [(611 - 561) / 561] x 100
Subtract the new number by the original number
611 - 561 = 50
50 ÷ 561 = 0.08912655971479501
0.08912655971479501 x 100 = 8.91%