When configuring calculations of employee's wages in Orderry, there is a rule for computing “**To specialist for the works/services**” where you can enable the “**Account cost price of the products that were written off for the zero price**” checkbox.

The checkbox works only if you have set up payroll from the profit from the work/service.

The calculation is carried out according to the following rule: the profit from the service/work is deducted from the value of the products and a specified percentage is calculated from the amount received by the employee. Profit from the service/work is calculated as their amount minus the cost.

*For example, let’s take a work order with work for the amount of 300 and the cost of the work 50, and spare parts at zero price but with the cost of 87.*

*From the total amount of work (300), subtract the cost of work (50) and the cost of the spare part (87) = 163.*

*25% of 163 = 40.75.*