Formula produces unexpected results

I am putting together a financial spreadsheet for a club.

I thought I would add a small "Balance" helper column at column J. If the amounts are entered correctly a "B" will appear and if not an "N"

The formula in column Z15 to Z18 works well for my first three scenarios, but not in the fourth. I have tried pulling it apart where there appears to be a problem but nothing I do seems to work. Hopefully a new set of eyes can pick out what it is I am doing wrong.

If there is a more efficient way to write this formula please do tell me as I enjoy learning how to do things better.

Thank you


David

a "N" is missing:
=IF(AND(ISBLANK(D15),ISBLANK(E15)),"",IF(D15="",IF(SUM(H15:I15)=E15,"B",IF(SUM(H15:I15)-(SUM(K15:Q15))=E15,"B",IF(SUM(K15:Q15)=D15,"B","N"))),"N"))

Anyway, below may be shorter:

Please Login or Register  to view this content.

Your post does not comply with Rule 1 of our Forum RULES. Your post title should accurately and concisely describe your problem, not your anticipated solution.

Use terms appropriate to a Google search. Poor thread titles, like Please Help, Urgent, Need Help, Formula Problem, Code Problem, and Need Advice will be addressed according to the OP's experience in the forum: If you have less than 10 posts, expect (and respond to) a request to change your thread title. If you have 10 or more posts, expect your post to be locked, so you can start a new thread with an appropriate title.

To change a Title on your post, click EDIT then Go Advanced and change your title, if 2 days have passed ask a moderator to do it for you.

(This thread should receive no further responses until this moderation request is fulfilled, as per Forum Rule 7)

8888888888

Try again:

Please Login or Register  to view this content.

Does it work?
If not, could you pls explain your logic by words?