I don't know what formula ESPN is using but this is what the NFL has listed as tie breaking procedure.
The following procedures will be used to break standings ties for postseason playoffs and to determine regular-season schedules.
Note: Tie games count as one-half win and one-half loss for both clubs
TO BREAK A TIE WITHIN A DIVISION
If, at the end of the regular season, two or more clubs in the same
division finish with the best won-lost-tied percentage, the following
steps will be taken until a champion is determined:
TWO CLUBS
1. Head-to-head (best won-lost-tied percentage in games
between the clubs).
2. Best won-lost-tied percentage in games played within the division.
3. Best won-lost-tied percentage in common games.
4. Best won-lost-tied percentage in games played within the
conference.
5. Strength of victory in all games.
6. Strength of schedule in all games.
7. Best combined ranking among conference teams in points
scored and points allowed in all games.
8. Best combined ranking among all teams in points scored
and points allowed in all games.
9. Best net points in common games.
10. Best net points in all games.
11. Best net touchdowns in all games.
12. Coin toss.
THREE-OR-MORE CLUBS
(Note: If two clubs remain tied after one-or-more clubs are
eliminated during any step, tiebreaker restarts at Step 1 of two-club
format. If three clubs remain tied after a fourth club is eliminated
during any step, tiebreaker restarts at Step 1 of three-club format.)
1. Head-to-head (best won-lost-tied percentage in games
among the clubs).
2. Best won-lost-tied percentage in games played within the
division.
3. Best won-lost-tied percentage in common games.
4. Best won-lost-tied percentage in games played within the
conference.
5. Strength of victory in all games.
6. Strength of schedule in all games.
7. Best combined ranking among conference teams in points
scored and points allowed in all games.
8. Best combined ranking among all teams in points scored
and points allowed in all games.
9. Best net points in common games.
10. Best net points in all games.
11. Best net touchdowns in all games.
12. Coin toss.
Rams 8-6 (3-1)(5-5) -28 Pt Diff.
Seattle 8-6 (3-2)(4-5) +2 Pt. Diff.
Rams have 2 division and conference games remaining (Arizona; Seattle), 1 vs AFC (NY Jets)
Seattle has 1 division, 3 conference games remaining (Minnesota, Chicago, LA Rams)
Applying those tie breaking procedures above, I can only come up with one way we win the division when we both finish at 10-7 with Seattle beating us. That's with a larger point differential. And that would take Seattle getting beat bad by Minnesota, squeaking by Chicago and beating us by a low number while we were beating the Jets and Arizona by a large number. We would have to make up more than 30 points in the next two weeks with enough cushion to cover a loss to Seattle. It could be done but man that's gonna be tough.
We could lose to the Jets, beat Arizona and Seattle and win the division, even if Seattle beat Minnesota and Chicago by virtue of head to head sweep. We could beat the Jets, lose to Arizona and beat Seattle and win the division if Arizona lost to either Carolina or San Francisco. I'm not sure how it would be if the Rams, Seattle and Arizona finish with the same record.
Of course I could be reading that tie breaking procedure wrong. I would love that. Somebody tell me what I've misread. ESPN doesn't usually screw up but .....