22.51% is the change from 391 to 479
Calculation steps:
[( 479 - 391 ) ÷ 391] x 100 = 22.51%
Formula
Percentage change = [(479 - 391) / 391] x 100
Subtract the new number by the original number
479 - 391 = 88
88 ÷ 391 = 0.22506393861892582
0.22506393861892582 x 100 = 22.51%