8.09% is the change from 581 to 628
Calculation steps:
[( 628 - 581 ) ÷ 581] x 100 = 8.09%
Formula
Percentage change = [(628 - 581) / 581] x 100
Subtract the new number by the original number
628 - 581 = 47
47 ÷ 581 = 0.08089500860585198
0.08089500860585198 x 100 = 8.09%