-72.73% is the change from 847 to 231
Calculation steps:
[( 231 - 847 ) ÷ 847] x 100 = -72.73%
Formula
Percentage change = [(231 - 847) / 847] x 100
Subtract the new number by the original number
231 - 847 = -616
-616 ÷ 847 = -0.7272727272727273
-0.7272727272727273 x 100 = -72.73%