-78.76% is the change from 871 to 185
Calculation steps:
[( 185 - 871 ) ÷ 871] x 100 = -78.76%
Formula
Percentage change = [(185 - 871) / 871] x 100
Subtract the new number by the original number
185 - 871 = -686
-686 ÷ 871 = -0.7876004592422503
-0.7876004592422503 x 100 = -78.76%