-64.39% is the change from 879 to 313
Calculation steps:
[( 313 - 879 ) ÷ 879] x 100 = -64.39%
Formula
Percentage change = [(313 - 879) / 879] x 100
Subtract the new number by the original number
313 - 879 = -566
-566 ÷ 879 = -0.6439135381114903
-0.6439135381114903 x 100 = -64.39%