11.02% is the change from 581 to 645
Calculation steps:
[( 645 - 581 ) ÷ 581] x 100 = 11.02%
Formula
Percentage change = [(645 - 581) / 581] x 100
Subtract the new number by the original number
645 - 581 = 64
64 ÷ 581 = 0.11015490533562823
0.11015490533562823 x 100 = 11.02%