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.