-13.64% is the change from 887 to 766
Calculation steps:
[( 766 - 887 ) ÷ 887] x 100 = -13.64%
Formula
Percentage change = [(766 - 887) / 887] x 100
Subtract the new number by the original number
766 - 887 = -121
-121 ÷ 887 = -0.13641488162344984
-0.13641488162344984 x 100 = -13.64%