Round the result of summary function average

I am using the summary function average and display the result in a bar chart. The height of the bar is the averaged value of data. Now I need to show the value of the calculation as a point label, but Toad gives me 13 decimal digits. How can I round the value to one or two digital digits? I assume it is easy but just can not find it.
Can anoyne help me out please?
Thanks,
JochenR

I am sorry I found the setting in the meantime! It is in the chart wizard, chapter series, on the right, one of the vertical tabs. Just in case anyone else is also looking for it.
Message was edited by: JochenR

Message was edited by: JochenR