52.85% is the change from 439 to 671
Calculation steps:
[( 671 - 439 ) ÷ 439] x 100 = 52.85%
Formula
Percentage change = [(671 - 439) / 439] x 100
Subtract the new number by the original number
671 - 439 = 232
232 ÷ 439 = 0.5284738041002278
0.5284738041002278 x 100 = 52.85%