Key legal question
Whether the commission component had to be calculated on gross or net turnover
Extracted holding
The parties had actually agreed on gross turnover as the basis; the employer's contrary interpretation failed.
Extracted reasoning
The cantonal court's factual findings were not shown to be arbitrary, and Art. 8 ZGB did not entitle the employer to further proof where the court found the employee's account proven and rejected the alleged deductions as unproven.