3.04% is the change from 593 to 611
Calculation steps:
[( 611 - 593 ) ÷ 593] x 100 = 3.04%
Formula
Percentage change = [(611 - 593) / 593] x 100
Subtract the new number by the original number
611 - 593 = 18
18 ÷ 593 = 0.03035413153456998
0.03035413153456998 x 100 = 3.04%