-50.11% is the change from 880 to 439
Calculation steps:
[( 439 - 880 ) ÷ 880] x 100 = -50.11%
Formula
Percentage change = [(439 - 880) / 880] x 100
Subtract the new number by the original number
439 - 880 = -441
-441 ÷ 880 = -0.5011363636363636
-0.5011363636363636 x 100 = -50.11%