Adding field to calculate sum of a field and count of a field in pivot table

Hi all

I have set up a pivot table, which shows the count of one field and the sum of another. My aim is to add a further column which will divide one by the other. I have tried to do this using the calculation field function, but it only allows me to divide the original fields, not the count and sum I have created in the values area of the table.

I have attached the table below. I would like the extra field to divide sum of runners by count of races.

Any help would be greatly appreciated.

Gemma

Sorry for delay in replying I have had internet connection problems.

I will be looking at alot of different data within this pivot table. Sometimes the pivot table will appear small, other times it will be very large. I would like it so that when I refresh and filter out what I want to look at the end column of average runners will refresh with it. At the minute I have a formula next to the table to get this data but it doesnt look pretty and I would prefer it within the table.

As for your question I am not familiar with the GetPivot formula sorry, but if it does the same as intercalculations I would be happy with it.

Thanks
Gemma

In looking at my pivot table I have actually used a getpivot formula for what I currently have. Is there any way of getting intercalculations within a pivot table?