-51.31% is the change from 879 to 428
Calculation steps:
[( 428 - 879 ) ÷ 879] x 100 = -51.31%
Formula
Percentage change = [(428 - 879) / 879] x 100
Subtract the new number by the original number
428 - 879 = -451
-451 ÷ 879 = -0.5130830489192264
-0.5130830489192264 x 100 = -51.31%