-89.61% is the change from 876 to 91
Calculation steps:
[( 91 - 876 ) ÷ 876] x 100 = -89.61%
Formula
Percentage change = [(91 - 876) / 876] x 100
Subtract the new number by the original number
91 - 876 = -785
-785 ÷ 876 = -0.8961187214611872
-0.8961187214611872 x 100 = -89.61%