79.73% is the change from 439 to 789
Calculation steps:
[( 789 - 439 ) ÷ 439] x 100 = 79.73%
Formula
Percentage change = [(789 - 439) / 439] x 100
Subtract the new number by the original number
789 - 439 = 350
350 ÷ 439 = 0.7972665148063781
0.7972665148063781 x 100 = 79.73%