Create Excel version of web calculator

We need to build an Excel version of the calculator found at: [login to view URL] The Excel version will be a simplified version of what you see here, with one worksheet containing inputs, and a second worksheet containing results (output). The calculation formulas are simple, and are a combination of multiplying values from line items, then summing up some totals. We do not expect things like graphics, etc. to be carried over to the Excel version: just a simplified version of what you see in the URL. Qualified candidates should have strong experience building Excel macros and formulas.