-99.32% is the change from 877 to 6
Calculation steps:
[( 6 - 877 ) ÷ 877] x 100 = -99.32%
Formula
Percentage change = [(6 - 877) / 877] x 100
Subtract the new number by the original number
6 - 877 = -871
-871 ÷ 877 = -0.9931584948688712
-0.9931584948688712 x 100 = -99.32%