If the relevant tax authorities approve an application, the calculation basis can be adjusted. In Switzerland, for example, the Tax Conference uses circulars to define a basis for the taxation of shares without a market value (circular 28). The proposal of the Tax Conference provides for the calculation to be based on the turnover from the profit and loss account and the net asset value from the balance sheet. This can be adjusted with the approval of the tax authorities. For example, it is possible to base the calculation on earnings before interest and taxes (EBIT) and multiply this by a multiple. The corresponding multiples can be viewed on common financial portals, for example (NYU data). These EBIT multiples can range from 10 to 30. Ultimately, it is the respective tax authority that acceepts such a proposal in a tax ruling.