-91.52% is the change from 861 to 73
Calculation steps:
[( 73 - 861 ) ÷ 861] x 100 = -91.52%
Formula
Percentage change = [(73 - 861) / 861] x 100
Subtract the new number by the original number
73 - 861 = -788
-788 ÷ 861 = -0.9152148664343787
-0.9152148664343787 x 100 = -91.52%