15.15% is the change from 581 to 669
Calculation steps:
[( 669 - 581 ) ÷ 581] x 100 = 15.15%
Formula
Percentage change = [(669 - 581) / 581] x 100
Subtract the new number by the original number
669 - 581 = 88
88 ÷ 581 = 0.1514629948364888
0.1514629948364888 x 100 = 15.15%