40.75% is the change from 319 to 449
Calculation steps:
[( 449 - 319 ) ÷ 319] x 100 = 40.75%
Formula
Percentage change = [(449 - 319) / 319] x 100
Subtract the new number by the original number
449 - 319 = 130
130 ÷ 319 = 0.40752351097178685
0.40752351097178685 x 100 = 40.75%