get total from two different datasets into a third different tablix ssrs - reporting-services

Question

Here I am, again with another doubt.
Here is my problem:
I have a report where I show ALL the incomes and expenses of the company for the last two days, which i managed by placing a column group grouping the columns by the date
Originally, the report contained a single matrix with both incomes and expenses fed by a dataset that points to the company cube applying the following filter expression
=IIF(Fields!Fecha.Value=Parameters!FechaHoy.Value or Fields!Fecha.Value = Parameters!DiaAnterior.Value,true,false)
FechaHoy = date sent via report parameter input
FechaAyer = date
parameter minus one day
and the filter value set to
=true
So far so good. Today, the upper management decided to split it into three matrix. One for incomes and other two for expenses (one for each expense category), so i startet with this
initial report layout
I created two new datasets for each one of the expense categories with the same filters, and now i'm here
current report layout
THE THING IS... as you can see, there is a "Total Destino" independent table where i have to add the totals of the second and third matrix in the image I added, but, as I already said I have to show the last two days, so i also have to partially add the total of each day (which are column grouped by date)
I'm pretty sured that there's also a better and more efficient way to manage what I did with the three matrices but the main issue which needs your assistance is how do i add the totals of the second and third matrices.
I already tried with
=Sum(Fields!Saldo.Value, "Informacion_Destino") + Sum(Fields!Saldo.Value, "Info_InvTesoreria")
but it adds the two days and repeat it for the two days. I also tried with ReportItems!TextBox + ReportItems!TextBox but the preview loads sends me an error message.
Thanks in advance for your time and help

Answer 1

Like Harry stated already out you can use for your overall total the following expression for the Tesoreria Subtotal + Destino Subtotal :
=ReportItems!TesoreriaSubtotal.Value + ReportItems!DestinoSubtotal.Value
This would give you the overall total for all days. Now if you just have to show the last two days you can add a tablix filter, like this:
'Expression
=IIF(CDate(Fields!YourDate.Value) < DateAdd("d", -2, Now()), True, False)
'Format
=Boolean
'Value
=False