There are two evaluation reports that you might find useful, the Submission status report and the Vendor pricing report.
Submission status
First of all you can view a submission status report showing how compliant your submission is and how many outstanding (incomplete) items there still are for your attention.
Pricing report
The second report is the pricing report, the pricing report allows the vendor to view all priced items, convert to additional currencies and do what-if calculations by including and excluding items from the report.
Once you click on the pricing report link under the Evaluation panel the pricing information overview page will show the total contract / external costs and grand totals for all documents that have prices.
Click on the document name to view the full report all headings that have a price will be listed.
You can now perform what-if? tests by checking / unchecking the Include check box next to the item the total cost will be updated at the top of the document report and also on the overview screen.
You can also click on the submission button and go directly to an item to update it. A new window will popup with the heading detail and you can edit it and close it when you are done.
The pricing summary will then be updated with the changed information. You can also send or read correspondence or move your mouse over the magnifying glass to see the full requirement text.