Calculation Lines
Use the calculation line type when you must calculate the periods of a line on the basis of another line.
Each calculation line must refer to another line (on which the calculation should be based). Additionally, set a surcharge type as well as surcharge values for all periods. Alternatively, specify a surcharge key on the line.
The calculation line must refer to either a line on the same budget as the calculation line, or, if the calculation line is on a main budget, to line on a sub budget (of type sub budget) to the main budget.
On sum budgets, the value of calculation lines is the sum of all corresponding lines on the main and sum budgets directly below the sum budget in the budget hierarchy.
As with manual lines, use this line type on all budget types, except the direct costs and settlements budgets.