The NPER worksheet function requires you to supply a periodicpayment value instead of a future value.
NPER工作表函数要求给出定期支付值，而不是未来值。
2
Many business loans use a level amortization with roughly equal principal reductions from each periodicpayment.
许多商业贷款采用的平均摊销的方法是：从每次的周期性付款中，进行大体相同的本金削减。
3
The ongoing franchise fee or royalty is usually expressed as either a percentage of the gross volume of the business or else as a fixed periodicpayment amount.