-11.83% is the change from 871 to 768
Calculation steps:
[( 768 - 871 ) ÷ 871] x 100 = -11.83%
Formula
Percentage change = [(768 - 871) / 871] x 100
Subtract the new number by the original number
768 - 871 = -103
-103 ÷ 871 = -0.1182548794489093
-0.1182548794489093 x 100 = -11.83%