Negociating

I went to Nan-Tou last week to see firefly and to buy black tea. Nan-Tou tea is famous tea in Taiwan for the tea has special fruit smell and smoth test. However, the tea is expensive so I found a plant which would like to sell for low price. The boss is a young man who have bad math he cloundn't transfer the unit between g, kg and kilos. So we finally bough the tea for cheap price.