-85.95% is the change from 861 to 121
Calculation steps:
[( 121 - 861 ) ÷ 861] x 100 = -85.95%
Formula
Percentage change = [(121 - 861) / 861] x 100
Subtract the new number by the original number
121 - 861 = -740
-740 ÷ 861 = -0.859465737514518
-0.859465737514518 x 100 = -85.95%