Copy calculated field in another

I would like to copy the calculation value from one field to another if the stay is similar for the couple and count it in the total. Is it possible ?
I have been able to accomplish this by adding a number field with the same calculation as on page one, but it shows as a boxed field instead of the product calculated field that shows up nicely.

I cannot remove this total from my email even if the condition is not met.
If no spouse does not display: “Spouse total”