Default Nonblank cells in a range, to show an even split of the inserted Total amount?

Hi all!

I have a seemingly simple problem. But I'm terrible at excel

I have a total of $12,000 (cell P71) which is to be divided evenly by the number of cells that are not blank between July (Cell D71) and June (Cell O71) as seen below. I'm trying to find a formula to automate this so that if I delete a months figure (make it blank), the total of $12,000 will be split evenly into the remaining nonblank cells. I hope this makes sense! I tried inserting in the month cells =P71/COUNT(D71:O71) but it gives me a circular error?

Also when I change the total in P71 (the total of $12,000), I'm hoping it will automatically divide that into the remaining months that are not empty cells.


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any help appreciated! thanks guys