A real market example wo work off for the explanation:

This is a 98% market.

2. HOT BUZZARD = 1.95 / 1.92

3. DANA TRAVIS = 5.8 / 5.5

4. REGAL GATE = 80.0 / 55.0

6. RYBENBROOK FLICK = 20.0 / 14.0

7. CAPTAIN KRUNCH = 15.0 / 13.5

8. PERFECT POWER = 6.0 / 5.5

Its a dog market I know but i collect hose as well and any market should be easy to do the explanation. So I would lay each as follows ?

2 = $56.41
3 = $18.10
4 = $1.25
6 = $5.00
7=$6.66
8=$17.00

So the total coming in to me is $104.42

If Fav wins I lose $110 - 104.42 = $5.58
If 2nd Fav wins I lose $105 =58c
If 3rd Fav wins I win = $2.42
If any other runner wins I win $4.42

Is this correct keeping in mind I have not taken into account commission.

Over 100 races lets assume favs win 30 times, 2nd favs 25 times and 3rd favs 15 times and all others 30 times.

30 Times I lose $5.58 = $167.40
25 Times I lose 58c = $14.50
15 Times I win $2.42 = $36.30
30 Times I win $4.42 = $132.60

This makes a loss of $13.

What am I missing with Marks method ?