-30.1% is the change from 628 to 439
Calculation steps:
[( 439 - 628 ) ÷ 628] x 100 = -30.1%
Formula
Percentage change = [(439 - 628) / 628] x 100
Subtract the new number by the original number
439 - 628 = -189
-189 ÷ 628 = -0.30095541401273884
-0.30095541401273884 x 100 = -30.1%