I am trying to map the price by SKU from another module but unable to.
Not sure where i did wrong.
Your screens don't show the full grids, but I presume it's because your source module seems to have another list that your calculated module doesn't have (see 'Centurion' in your page dim from your source module).
Your source module (GSV Pricing) has an extra dimension which has a top level and you haven't kept the summary on for GSV Price(LC) line item. That's why it is showing zero in your target module.
Now you have to decide how you want to deal with this extra dimension in your source module like, do you want to see the top level price based on summary or corresponding to some list items of the extra dimension?