-12.66% is the change from 877 to 766
Calculation steps:
[( 766 - 877 ) ÷ 877] x 100 = -12.66%
Formula
Percentage change = [(766 - 877) / 877] x 100
Subtract the new number by the original number
766 - 877 = -111
-111 ÷ 877 = -0.1265678449258837
-0.1265678449258837 x 100 = -12.66%