-54.15% is the change from 879 to 403
Calculation steps:
[( 403 - 879 ) ÷ 879] x 100 = -54.15%
Formula
Percentage change = [(403 - 879) / 879] x 100
Subtract the new number by the original number
403 - 879 = -476
-476 ÷ 879 = -0.5415244596131968
-0.5415244596131968 x 100 = -54.15%