InfoPath Dev

How do I go about calcuating the sum of values within a repeating table?  For example, each row within my repeating table has a field called Value.  I'm not sure how many rows will be added to the repeating table but would like the form to calculate the sum of all data within each Value field in a field called Total Land Value.

 Thanks for your help!

In you TotalLandValue field, use the sum() function in a default value. When you select the "Value" field, sum will sum all instances of the field.

sum(Value)

It worked perfectly.  Thanks Hilary!