Commission payments are usually made on a monthly or biweekly basis. For example, if you’re paid every 2 weeks, your commission period might be January 1 to January 15. That means that you’re only paid for sales made during January 1 to January 15.  Typically, your commission will be paid based on whatever sales you made in the preceding commission period. For example, if you made several sales in January, you may not receive your commission until February.  Depending on how the business operates, there may be other factors that delay your commission. For example, some companies will not pay you your commission until after they receive full payment from the customer for the sale or service. For example, if you’re paid based on the purchase price of products sold, and you sold $30,000 worth of products from January 1 to January 15, your total commission base for that period is $30,000. If you’re paid a different commission rate for different products, calculate the total commission base by-product. For example, if you sold an equal amount of 2 products but they have different commission rates, note that you sold $15,000 of Product A and $15,000 of Product B. To calculate your commission for a specific period, multiply the appropriate commission rate by the base for that period. For example, if you made $30,000 worth of sales from January 1 to January 15 and your commission rate is 5%, multiply 30,000 by .05 to find your commission payment amount of $1,500. In some cases, you may need to calculate the original sale amount based on your commission. Assuming your commission is a straightforward percentage of the commission base, you can figure this out by dividing the amount of your commission by commission rate (e.g., $1,500/.05 = $30,000). Some commission rates vary based on which products or services you’re selling. If you’re paid different rates for different products, multiply each commission base by the corresponding commission rate and add the resulting figures. For example, say you sold $15,000 of Product...

How would you rephrase that briefly using Chinese?
确定佣金周期。 计算该时间段内的佣金总基数。 将佣金率乘以佣金基数。 考虑不同的佣金率。 考虑梯级佣金率。