A value model for a software product can be a formula or an algorithm that helps estimate the number of licenses that can be sold, at what price, over the product lifecycle.
So what everybody knows is that the discount is converted into a price according to this formula.
所以每个人都知道,折扣率可以通过这个公式转换成价格
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Well, there's a formula that's been used by bond traders for hundreds of years and it's a traditional expression, which goes from the discount rate to the price.