Processing Appropriation Request Variants 
Procedure
Since each appropriation request requires at least one variant, the system creates one variant automatically.
To copy an existing variant, choose the Copy as new variant function. The plan values are copied automatically into the new variant. If the existing variant also has a cost estimate, a message appears asking if you want to copy it also. If you say yes, the new variant is created with the cost estimate.
To remove an existing variant, choose the Delete variant function. Any plan values or cost estimate that it has are also deleted.

There is an icon allowing you to switch back and forth between two different views of the variants. Choose Change view: versions to see the various program versions with the variants assigned to them. Or, in the other direction, choose Change view: variants to see just the appropriation request variants.
The system automatically determines the two key figures net present value and discounted cash flow rate when you choose the Calculate preinvestment analysis figures function. The system bases its calculation on the planned costs and revenue, and the yield curve that was entered in Customizing (refer to
Revenue Planning for the Preinvestment Analysis ). If you have not yet maintained planned costs and revenue, and entered a yield curve, the system cannot calculate these values. You have to calculate the other preinvestment figures yourself. You can then enter them as information in the master record.