-6.73% is the change from 877 to 818
Calculation steps:
[( 818 - 877 ) ÷ 877] x 100 = -6.73%
Formula
Percentage change = [(818 - 877) / 877] x 100
Subtract the new number by the original number
818 - 877 = -59
-59 ÷ 877 = -0.06727480045610035
-0.06727480045610035 x 100 = -6.73%