48.8% is the change from 582 to 866
Calculation steps:
[( 866 - 582 ) ÷ 582] x 100 = 48.8%
Formula
Percentage change = [(866 - 582) / 582] x 100
Subtract the new number by the original number
866 - 582 = 284
284 ÷ 582 = 0.4879725085910653
0.4879725085910653 x 100 = 48.8%