-78.53% is the change from 871 to 187
Calculation steps:
[( 187 - 871 ) ÷ 871] x 100 = -78.53%
Formula
Percentage change = [(187 - 871) / 871] x 100
Subtract the new number by the original number
187 - 871 = -684
-684 ÷ 871 = -0.7853042479908151
-0.7853042479908151 x 100 = -78.53%