select case calculations not working

I have a multi-step VBA (Classify) that the calculations do not seem to be working. I have put an example here:
https://app.box.com/s/na2a9bq02x7v9szjs9vl

I have a worksheet_change event:

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that is supposed fire the Calculations (Step 5) when the user selects the case in A2. That doesn't seem to be working and I need some expert help figuring this out. Thank you.

Classify VBA:
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Calculations VBA:
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I am not sure I follow as I am still new to VBA. How should Calculations be called and is this a better select case statement? Thanks.

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Are the codes below correct or close ? Thanks.

For the worksheet_change event in the annovar sheet (where the A2 selection is made):
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Select case
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