49.62% is the change from 391 to 585
Calculation steps:
[( 585 - 391 ) ÷ 391] x 100 = 49.62%
Formula
Percentage change = [(585 - 391) / 391] x 100
Subtract the new number by the original number
585 - 391 = 194
194 ÷ 391 = 0.4961636828644501
0.4961636828644501 x 100 = 49.62%