Sum of values in a continuous form

T

Travis

I've got a continuous (sub)form based on a query.

It looks like this...

< Investment_name1 > < cost_base1 > < current_value1 >
< Investment_name2 > < cost_base2 > < current_value2 >
< Investment_name3 > < cost_base3 > < current_value3 >
< Investment_name4 > < cost_base4 > < current_value4 >
< Investment_name5 > < cost_base5 > < current_value5 >

Plus other fields which aren't relevant to this question.

I want a total at the bottom of the form, sum of all cost bases, sum of
all current values.

I know how to add together values in a NON continuous form, but not
sure how to go about doing it with a continuous form.

I tried to build the expression = sum ( [fieldname] ) and placed it in
the footer, but the box is blank...

Travis
 

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