27.9% is the change from 319 to 408
Calculation steps:
[( 408 - 319 ) ÷ 319] x 100 = 27.9%
Formula
Percentage change = [(408 - 319) / 319] x 100
Subtract the new number by the original number
408 - 319 = 89
89 ÷ 319 = 0.27899686520376177
0.27899686520376177 x 100 = 27.9%