Hi Christine,
Without seeing the formula it's difficult to help
In general I have used IF statements to test if the target profit has been met, eg
=IF(CURRENT_BANK >= TARGET_PROFIT, 0, NORMAL_STAKE) which
would actually look something like this with real cell references
=IF(N$2>=M$2*(1+O$2),0,5)
(if the bank in cell N2 is greater than or equal the starting bank in M2 plus the targey profit then set stake to 0 otherwise set to 5). The $ means the cell number won't increment when you drag down the formula
You can then nest IF statements inside each other using the same principle
=IF(CURRENT_BANK >= TARGET_PROFIT, 0, IF(CURRENT_BANK <= STOP LOSS, 0, NORMAL_STAKE))
(does the same as above but checks for loss limit)
If your still stuck send me the link to the spreadsheet and I'll have a look
Os