M：非常好，那我们聊一个贵的比例吧，您觉得假设这两款床垫，因为我们不知

M: Very good. Let’s talk about an expensive ratio. If you think of these two mattresses, because we don’t know what their starting price is, let’s just talk about the percentage. You think there are more colors than those without colors. What percentage do you think is reasonable and what you are willing to pay? <br>A: 5%.

M: Very good, then let's talk about an expensive ratio, you think suppose these two mattresses, because we don't know what its starting price is, let's say percentage, do you think there is color than no color of how much you think is reasonable, and you are willing to pay?<br>A：5%。

M: Very good. Let's talk about an expensive ratio. If you think that we don't know the starting price of these two mattresses, let's say the percentage. How much do you think the color is more expensive than the one without color? Do you think it's reasonable and you are willing to pay for it?<br>A：5%。