21.03% is the change from 390 to 472
Calculation steps:
[( 472 - 390 ) ÷ 390] x 100 = 21.03%
Formula
Percentage change = [(472 - 390) / 390] x 100
Subtract the new number by the original number
472 - 390 = 82
82 ÷ 390 = 0.21025641025641026
0.21025641025641026 x 100 = 21.03%