0.23% is the change from 439 to 440
Calculation steps:
[( 440 - 439 ) ÷ 439] x 100 = 0.23%
Formula
Percentage change = [(440 - 439) / 439] x 100
Subtract the new number by the original number
440 - 439 = 1
1 ÷ 439 = 0.002277904328018223
0.002277904328018223 x 100 = 0.23%