23.27% is the change from 391 to 482
Calculation steps:
[( 482 - 391 ) ÷ 391] x 100 = 23.27%
Formula
Percentage change = [(482 - 391) / 391] x 100
Subtract the new number by the original number
482 - 391 = 91
91 ÷ 391 = 0.23273657289002558
0.23273657289002558 x 100 = 23.27%