Final answer:
The sales commission of $85,800 is likely calculated by applying a commission rate to the total sales amount. Without specific details on the commission rate or total sales, an exact calculation cannot be provided.
Step-by-step explanation:
To determine how the sales commission of $85,800 was calculated, you would typically use the agreed-upon commission rate and apply it to the total sales amount. For example, if a salesperson is entitled to a 5% commission on all sales, and they sold goods totaling $1,716,000 over a certain period, the calculation would be: 0.05 (5% commission rate) multiplied by $1,716,000 (total sales), which equals a commission of $85,800.
However, without additional context or information about the total sales and commission rate, it's not possible to provide a detailed explanation of how this specific commission amount was arrived at.