-50.62% is the change from 889 to 439
Calculation steps:
[( 439 - 889 ) ÷ 889] x 100 = -50.62%
Formula
Percentage change = [(439 - 889) / 889] x 100
Subtract the new number by the original number
439 - 889 = -450
-450 ÷ 889 = -0.5061867266591676
-0.5061867266591676 x 100 = -50.62%