-66.32% is the change from 861 to 290
Calculation steps:
[( 290 - 861 ) ÷ 861] x 100 = -66.32%
Formula
Percentage change = [(290 - 861) / 861] x 100
Subtract the new number by the original number
290 - 861 = -571
-571 ÷ 861 = -0.6631823461091754
-0.6631823461091754 x 100 = -66.32%