25.08% is the change from 319 to 399
Calculation steps:
[( 399 - 319 ) ÷ 319] x 100 = 25.08%
Formula
Percentage change = [(399 - 319) / 319] x 100
Subtract the new number by the original number
399 - 319 = 80
80 ÷ 319 = 0.2507836990595611
0.2507836990595611 x 100 = 25.08%