-73.17% is the change from 861 to 231
Calculation steps:
[( 231 - 861 ) ÷ 861] x 100 = -73.17%
Formula
Percentage change = [(231 - 861) / 861] x 100
Subtract the new number by the original number
231 - 861 = -630
-630 ÷ 861 = -0.7317073170731707
-0.7317073170731707 x 100 = -73.17%