How to use the numbers in a formula

OK thanks for answering again, I tried that, but get #name?

I've attached part of my sheet. (Hopefully)

Col M (Gold cell) takes the average of the previous 6 results in Col N (Blue cells)

I would like to see the number 6 in Col R (Yellow cell)

What happens is, if someone else uses the sheet they insert/delete rows and so the average in Col M becomes more or less than 6, I'd like to see the number 6 so that I know if they have fiddled with it.

so M54 (=AVERAGE(N49:N54)) is the average of 6 cells N49 to N54...

Does that make sense?

Thanks