-50.97% is the change from 879 to 431
Calculation steps:
[( 431 - 879 ) ÷ 879] x 100 = -50.97%
Formula
Percentage change = [(431 - 879) / 879] x 100
Subtract the new number by the original number
431 - 879 = -448
-448 ÷ 879 = -0.5096700796359499
-0.5096700796359499 x 100 = -50.97%