45.23% is the change from 440 to 639
Calculation steps:
[( 639 - 440 ) ÷ 440] x 100 = 45.23%
Formula
Percentage change = [(639 - 440) / 440] x 100
Subtract the new number by the original number
639 - 440 = 199
199 ÷ 440 = 0.45227272727272727
0.45227272727272727 x 100 = 45.23%