52.16% is the change from 439 to 668
Calculation steps:
[( 668 - 439 ) ÷ 439] x 100 = 52.16%
Formula
Percentage change = [(668 - 439) / 439] x 100
Subtract the new number by the original number
668 - 439 = 229
229 ÷ 439 = 0.5216400911161732
0.5216400911161732 x 100 = 52.16%