25.28% is the change from 439 to 550
Calculation steps:
[( 550 - 439 ) ÷ 439] x 100 = 25.28%
Formula
Percentage change = [(550 - 439) / 439] x 100
Subtract the new number by the original number
550 - 439 = 111
111 ÷ 439 = 0.2528473804100228
0.2528473804100228 x 100 = 25.28%