Substract values

[sharok]

Hello. I can sum the values ​​in a column by the function Sum. But how to subtract?
Thanks

[Alex K.]

Hello,

As a way, you can use the additional variable and code in AfterPrint event:
resultVariabe -= DataSourceName.ColumnName

Thank you.

[sharok]

I have 11 columns and I have to add 11 variables. May be there is other way?

[Alex K.]

Hello,

Yes, in this case you need add 11 variables.

Thank you.