-55.75% is the change from 879 to 389
Calculation steps:
[( 389 - 879 ) ÷ 879] x 100 = -55.75%
Formula
Percentage change = [(389 - 879) / 879] x 100
Subtract the new number by the original number
389 - 879 = -490
-490 ÷ 879 = -0.5574516496018203
-0.5574516496018203 x 100 = -55.75%