-90.75% is the change from 876 to 81
Calculation steps:
[( 81 - 876 ) ÷ 876] x 100 = -90.75%
Formula
Percentage change = [(81 - 876) / 876] x 100
Subtract the new number by the original number
81 - 876 = -795
-795 ÷ 876 = -0.9075342465753424
-0.9075342465753424 x 100 = -90.75%