In the query associated with an Invantive Control block you can include formulas in three variants:
select pjt.code
, pjt.description
, pjt.budgetedamount
, '=2*3' formula1
, '=b4*2' formula2
, '=$C{D,.,.,.-1,.}*2' formula3
from exactonlinerest..projects pjt
order
by pjt.code
The column formula1 has a static Excel formula which is evaluates to 6. The Excel formula must follow the Excel formula syntax in English, so use sum() instead of som().
The column formula2 uses a value taken from an Excel expression outside of the block, in this case from the cell B4.
The column formula3 uses the most advanced type of formula with so-called Cell Reference Expressions. Commonly used cell reference expressions are available in the building block menu as shown in picture (Dutch):

However, when you synchronize the model like this, formula3 will raise an error since you need to make explicit that a value may contain a column expression. For this reason, go to the tab 'Fields' of the block and check the checkboxes in column 'Formula' and 'Replace Column Expressions':

The result of synchronization will be something shown in picture:
