Does anyone have a lay only betting spreadsheet, where you can adjust the commission and stake please?

I've run into trouble and searched everywhere, but there's only back and lay type spreadsheets.

Here's what I've got so far:
J4 = Stake
J5 = Commission
I7 = Either blank (horse did not win) or BFSP odds (horse won)

Current formula is =IF(I7="",$J$4*(100%-$J$5),(-I7-$J$4)+$J$4*2)
Works fine on 7% commission and $1 stake

BUT if I change either the stake or commission% everything goes haywire.

Any help or suggestions gratefully accepted!

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I think I can do this easy but I usually do the equation for liability as if you're betting BFSP.

Sorry don't check the forum often so not sure if anyone helped you with this already or not. Should be easy enough to solve for a stake amount instead though.

If you haven't solved it yet let me know and ill work it out shouldn't take me long.

Thanks mate, I didn't even see your post for the last month.
I have it sorted, just had to break it all down and with a little help from Mr Excel got it sorted. Thanks for the offer, much appreciated.

__________________
RaceCensus - powerful system testing software.
Now with over 399,000 Metropolitan, Provincial and Country races!
http://www.propun.com.au/horse_raci...ng_systems.html
*RaceCensus now updated to 31/03/2024
Video overview of RaceCensus here:
http://www.youtube.com/watch?v=W821YP_b0Pg

I should post the formula for others:

=IF(K16="",$L$6*(100%-$L$7),(-K16*$L$6)+($L$6*1))

__________________
RaceCensus - powerful system testing software.
Now with over 399,000 Metropolitan, Provincial and Country races!
http://www.propun.com.au/horse_raci...ng_systems.html
*RaceCensus now updated to 31/03/2024
Video overview of RaceCensus here:
http://www.youtube.com/watch?v=W821YP_b0Pg