Li Changsheng did some calculations and found the price reasonable, "Old man, I must say your price is quite fair. However, since you urgently need the money, I'll have to give it all to you in one go. How about this, you knock off another 10 taels, and we'll settle at 140 taels?"
The old man pondered for a moment and felt it was acceptable. There's a rule in their trade transactions where one can pay a portion upfront and the rest can be paid after the autumn harvest. If one was paying all in cash upfront, some discount should be granted. "Alright, we're all from the same village, and it wouldn't be nice to not give you a discount. Plus, that's just the way it is. Okay then, 140 taels it is."