Cropping and Forming
In our Handlebar production scenario when operation 0010 - Cropping and Forming is finished, the actual values are entered in the Confirm Repetitive Manufacturing app using the Assembly Backflush method.
The following figure shows that using the app, only the actual activity quantities of the Machine and Labor activity have to be entered as they differ from the default values in the routing. The actual component quantities correspond to the default values in BOM, so using the app no data change is necessary.

When you choose the Post button, a goods issue is automatically posted as the message in the figure shows. You will also see the Material Management document number.
In the following, we will first show the posting results on the product cost collector which has order number 700021 in our scenario and then will we will first calculate all results and finally see which documents are posted in parallel when the Post button in the Confirm Repetitive Manufacturing app is executed.
Posting Results at the End of Operation 0010
If you open the Product Cost Collector Details - Event-Based app, you will find that at the end of operation 0010 - Cropping and Forming Actual Costs of EUR 291 result as well as a Total Cost Variance of EUR 22. WIP is EUR 269.

If you had executed the Schedule Product Costing Jobs app after this first operation, you would have got the information that EUR 20 of the Total Variance of EUR 22 represents the Input Quantity Variance and EUR 2 refers to the Remaining Variance. This amount results from an overhead production percentage of 10% which was calculated on top of the activities' amount (and here on top of the Input Quantity Variance of EUR 20).
We will execute the Schedule Product Costing Jobs app when also operation 0020 is finished!
In the following, we will first see how the values on our product cost collector are calculated. In a second step, we will have a look at the documents posted.
How Material Costs and Material Overhead Costs are Calculated
The following figure shows you how the material costs and the overhead costs are calculated.

How Production Costs and Production Overhead Costs are Calculated
This figure shows you how the calculation of the production costs takes the following into account: the actual quantities for activity MACH are 4 min per one S11-000 Handlebar and 3 min for activity PERS. In addition, 10% of the production costs represent the calculated production overhead costs.

Material Costs and Production Costs - Total Actual Costs
The following table gives an overview of the actual material costs and production costs and explains that the Total Actual Costs at the end of operation 0010 are EUR 291.

Calculation of Target Costs 1/2
The following figure summarizes all the relevant data for the calculation of the Target Costs and also contains the cost rates of the activities. These are plan cost rates!
Note
For the calculation of Target Costs it's always the plan cost rates that are relevant. Actual cost rates are not relevant for the calculation of Target Costs. Instead, they are relevant for actual cost estimate calculation.
Calculation of Target Costs 2/2
The following figure explains how to calculate Target Costs which are always calculated dynamically but not stored in the database.

The formula in the figure explains how to calculate Target Costs.
Here some annotations:
- In general, the target quantity is the planned quantity adjusted to the actual output of the product.
- In our scenario, the planned quantity of 10 S11-000 handlebars equals the quantity of 10 handlebars produced.
- Since 10 handlebars were planned in our scenario and 10 handlebars are actually also produced, the number of input materials of R111-000 - Bar depends on the lot size of 10 pieces.
- As a result, the planned quantity and the actual delivery quantity are the same in our scenario.
- This means that the factor in the formula, namely "Actual Output Quantity/Costing Lot Size", is 10/10 = 1.
At the same time, the actual delivery quantity corresponds to the yield of 10 S11-000 handlebars on the order because there is no scrap. Since no setup costs were planned in our scenario, the Planned Lot Size Independent Costs are zero in the formula.
Since WIP is valuated based on Target Costs, the result value for both is EUR 269.
Calculation of Total Variance
The following figure explains how the Total Variance of EUR 22 is calculated.
As you can see, the difference between Actual Costs and Target Costs results in the Total Variance.

Calculation of Input Variance
If you run the split run, the Total Variance is split in variance categories. In our scenario, EUR 20 of EUR 22 refer to the Input Quantity Variance and EUR 2 of EUR 22 refer to the Remaining Variance.
The following figure explains how the Input Quantity Variance is calculated.
