48.85% is the change from 391 to 582
Calculation steps:
[( 582 - 391 ) ÷ 391] x 100 = 48.85%
Formula
Percentage change = [(582 - 391) / 391] x 100
Subtract the new number by the original number
582 - 391 = 191
191 ÷ 391 = 0.4884910485933504
0.4884910485933504 x 100 = 48.85%