What is every AFC West Division team's record against the over/under line as a favorite in the 2018 season?

Definitions
Team Over Record Over % Under % Total +/-
Kansas City 7-7-0 50.0% 50.0% +1.8
Las Vegas 1-1-0 50.0% 50.0% +17.8
LA Chargers 4-7-0 36.4% 63.6% -2.1
Denver 2-6-0 25.0% 75.0% -4.1