How much should the man pay?

W: Here’s the stand.
M: Ah, yes. Hmm, how much is this chair? W: It’s $20.
M: Could you give me a discount?
W: A discount? Well, it depends on the size of the order. If you buy 50 units, I’ll give you a 5% discounts if you buy 100 units or more, I’ll give you a 10% discount.
M: Sounds good. OK, I’ll take 100.

I work in the export department of a trading company. Generally speaking, I enjoy my work. You see, trading is what I really want to do. My colleagues are very nice. The perks are good. And my boss is terrific. I have to travel abroad about once a month. I used to think it was fun but not now, maybe I’m getting old.