I understand that you made that decision, but that was a definate bet at starting time as we (several students ) were all watching all 3 states prices on Austext , because as you said sky didn't show it.
Nsw was floating between $4 and $4.30
Vic was around $4.60
Unitab was $4 to $4.20, Unitab did go down to $3.70 , but was back up when we placed our bets.
And we all got on .
Sure we had a bad day , but how did you get to $1150
Our records here show $277 with a profit of $21.20 7.7%
if you think that is peanuts, try and get the bank to pay that.

I have uploaded the finished spreadsheet so you can see where you may have gone wrong.

I just received a call from WA and the price there was $4.40 and he collected.

As a Beginner of one day , it is easy to make a mistake, You may not see it , but I know that $1150 loss is one of them.

regards Bert