6.8% is the change from 544 to 581
Calculation steps:
[( 581 - 544 ) ÷ 544] x 100 = 6.8%
Formula
Percentage change = [(581 - 544) / 544] x 100
Subtract the new number by the original number
581 - 544 = 37
37 ÷ 544 = 0.06801470588235294
0.06801470588235294 x 100 = 6.8%