The calculation of the fixed direct payment contribution is based on the determined late payment contribution. Using the income information of dozens of generations of late payers, we determine what Witten graduates of a degree programme earn on average after completing their studies. Now we look at the cumulative amount an average earning alumna would pay if she paid 12% of her relevant income for a full course of study (preclinical and clinical; Bachelor and Master) over a period of 10 years. This amount is the fixed amount of the immediate payers and determines which instalment is collected each month. In this way, it is possible to calculate the average income of Witten graduates for each degree programme using the income information of all late payers. The different immediate payment contributions for each degree programme are based on the different salary expectations of the graduates.

In a nutshell: The amount of the fixed direct payment contribution is related to the expected average income of Witten graduates for each degree programme.