-92.68% is the change from 861 to 63
Calculation steps:
[( 63 - 861 ) ÷ 861] x 100 = -92.68%
Formula
Percentage change = [(63 - 861) / 861] x 100
Subtract the new number by the original number
63 - 861 = -798
-798 ÷ 861 = -0.926829268292683
-0.926829268292683 x 100 = -92.68%