# Define Automatic Journals - the Calculation Methods Tab

On this tab you can see the calculation methods, which are the product of an amount type and a rate type. A combination of calculation methods forms a rule. Each automatic journal uses a rule.

There are a number of pre-defined calculation methods that are used by the pre-defined automatic journals. These have the code Cx, where x denotes a figure. You cannot modify or remove these calculation methods, but you can copy them.

The GM indicator in an automatic journal determines the value to be calculated.

- Amount type is the value that will be calculated if the GM Indicator is blank.
- Amount type is multiplied by rate type if you have defined the GM Indicator with "G".
- Amount type is multiplied by (1-rate type) if you have defined the GM Indicator with "M".

For more information about amount type codes, see Amount Type Codes.

For more information about rate type codes, see Rate Type Codes.

## Procedure

## Results

- Amount types and rate types are predefined in the system.
- The calculation methods used by the predefined automatic journals are also regarded as predefined and cannot be changed or deleted. The predefined calculation methods begin with "C".