-11.72% is the change from 879 to 776
Calculation steps:
[( 776 - 879 ) ÷ 879] x 100 = -11.72%
Formula
Percentage change = [(776 - 879) / 879] x 100
Subtract the new number by the original number
776 - 879 = -103
-103 ÷ 879 = -0.11717861205915814
-0.11717861205915814 x 100 = -11.72%