31.35% is the change from 319 to 419
Calculation steps:
[( 419 - 319 ) ÷ 319] x 100 = 31.35%
Formula
Percentage change = [(419 - 319) / 319] x 100
Subtract the new number by the original number
419 - 319 = 100
100 ÷ 319 = 0.31347962382445144
0.31347962382445144 x 100 = 31.35%