42.32% is the change from 449 to 639
Calculation steps:
[( 639 - 449 ) ÷ 449] x 100 = 42.32%
Formula
Percentage change = [(639 - 449) / 449] x 100
Subtract the new number by the original number
639 - 449 = 190
190 ÷ 449 = 0.42316258351893093
0.42316258351893093 x 100 = 42.32%