-66.9% is the change from 861 to 285
Calculation steps:
[( 285 - 861 ) ÷ 861] x 100 = -66.9%
Formula
Percentage change = [(285 - 861) / 861] x 100
Subtract the new number by the original number
285 - 861 = -576
-576 ÷ 861 = -0.6689895470383276
-0.6689895470383276 x 100 = -66.9%