48.71% is the change from 581 to 864
Calculation steps:
[( 864 - 581 ) ÷ 581] x 100 = 48.71%
Formula
Percentage change = [(864 - 581) / 581] x 100
Subtract the new number by the original number
864 - 581 = 283
283 ÷ 581 = 0.48709122203098104
0.48709122203098104 x 100 = 48.71%