-39.42% is the change from 789 to 478
Calculation steps:
[( 478 - 789 ) ÷ 789] x 100 = -39.42%
Formula
Percentage change = [(478 - 789) / 789] x 100
Subtract the new number by the original number
478 - 789 = -311
-311 ÷ 789 = -0.394169835234474
-0.394169835234474 x 100 = -39.42%