Multiple and then SUM in SSRS

Hi mates,

I am a newbie in SSRS but would like to get the sum of a multiplication.

Example.

I did this in my .aspx file:

Cons128Day = (Total128 * 3.72) * 10; AND THIS:

Cons160Day = (Total160 * 3.40) * 10;

TotalConsDay = Cons128Day + Cons160Day;

Finally this:

TotalConsMonth = TotalConsDay * 30;

Can someone please tell me how to convert those int SSRS calculations?

Thank you very much in advance