Budgeting
You know where the factor is, what it multiplies in a supplement and in an extra cost, and which number or formula to enter.
The **Factor** adjusts a supplement or an extra cost for one account. The definition in Settings sets the standard for the whole budget, and the factor sets how far this account differs from it. The factor does not change the definition or any other account. To change the standard for every account, edit the definition.
The **Factor** column is on the **Supplements** tab of the dialog **Fringes & Supplements: {account}** and in the dialog **Extra Costs: {account}**. The **Fringes** tab has no factor. You open the dialogs in the account details with  **Edit fringes & supplements** and  **Edit extra costs**.
The **X** column in the budget grid is a different factor. It is part of the account's own total. See [how an account total is calculated](/kb/article/how-an-account-total-is-calculated).
| Dialog | The definition sets | The factor multiplies | | ----------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------- | | **Supplements** tab of **Fringes & Supplements: {account}** | the share of working time the supplement covers, shown in **Percentage Of Work Time**, for example 10% overtime | that share. With `2`, this account runs at 20% overtime | | **Extra Costs: {account}** | an amount and a quantity. **Value** shows their product, for example one hotel night at 95.00 EUR | **Value**. **Total** shows **Value** × **Factor** |
Enter the factor that fits the account:
- This account runs at twice the standard overtime: enter `2`. - The standard is one hotel night and this account needs 35 nights: enter `35`. - The account matches the standard: enter `1`, or leave the field empty. KOSMA counts an empty factor as 1.
The factor is not a percentage. If you enter `20` on a supplement and mean twenty per cent, KOSMA multiplies the share by 20. KOSMA accepts `20` without an error, because 20 is a valid factor.
On the **Supplements** tab, KOSMA deletes the factor of a row when you untick it.
Both factor fields accept a formula. KOSMA then calculates the factor from other values in the budget. A formula can use the work-phase variables, your own variables and the subtotal variable `DFFF`. On the **Supplements** tab, it can also use `NPC`. In **Extra Costs: {account}**, it cannot. No factor formula can use `GT` or a function such as `SUM_COMPANY`.
In the demo project, the budget Demo Feature has a *Hotel* row on account 3.01 Director with this factor:
`Shooting_TD` holds the total days of the shooting phase, 35. KOSMA multiplies the 95.00 EUR of one hotel night by 35, and **Total** shows 3,325.00 EUR. When the days of the phase change, KOSMA recalculates the row.
A preset stores the factors together with the ticked rows. See [apply fringes and supplements](/kb/article/apply-fringes-and-supplements) and [apply extra costs](/kb/article/apply-extra-costs).
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