-73.72% is the change from 879 to 231
Calculation steps:
[( 231 - 879 ) ÷ 879] x 100 = -73.72%
Formula
Percentage change = [(231 - 879) / 879] x 100
Subtract the new number by the original number
231 - 879 = -648
-648 ÷ 879 = -0.7372013651877133
-0.7372013651877133 x 100 = -73.72%