3.79% is the change from 581 to 603
Calculation steps:
[( 603 - 581 ) ÷ 581] x 100 = 3.79%
Formula
Percentage change = [(603 - 581) / 581] x 100
Subtract the new number by the original number
603 - 581 = 22
22 ÷ 581 = 0.0378657487091222
0.0378657487091222 x 100 = 3.79%