Lookup to LARGE formula output

[Perch]

Hi
seem to be having a few problems with looking up to a LARGE formula output enclosed
For some reason it works fine until the 4th largest then it gives me N/A - its driving me nuts !
Please can someone have a look ? thanks

[Pete_UK]

I think you are suffering from the effects of rounding errors. You are taking a fractional value, then dividing it by 1000, then multiplying by 1000 in the VLOOKUP - now, although you think that the original value should be retained, each of those operations is capable of introducing errors in the 14th or 15th decimal position. To overcome it, you can use this formula in B7:

=VLOOKUP(ROUND($E7*1000,2),$H$4:$K$35,2,FALSE)

make similar changes to the other vlookups.

Hope this helps.

Pete

[Perch]

marvellous !!!!! saved me a lot of time - boss will be pleased thanks

[Pete_UK]

Okay, glad to hear it.

Two things to do when you have a solution to the problem is to first select Thread Tools from the menu above your first post and mark this thread as SOLVED. Secondly, you can directly thank those who have helped you by clicking on the small "star" icon located in the lower left corner of a post that you have found to be helpful (not just in this thread - for any post that has helped you). This also adds to the reputation of the poster (the small green bars in the poster's profile).

Pete

[Pete_UK]

Thanks for doing that.

Pete