You can add a secondary cost calculation formula. Secondary formulas enable more sophisticated scenario analysis because you use more than one cost calculation formula to evaluate a scenario.

To add a secondary cost calculation formula, complete the following steps:
- Go to Design > Cost Calculation.
- In the top-right corner of the page, click the Actions icon.
- Click Manage secondary calculations.
- Click Add a formula.
- Enter a name for the formula in the Enter a name… field.
- Click Save.
- Click the formula.
- Enter the formula in the Enter a formula field, or else use the operator, function, and column buttons to build your formula.