First, the first batch of goods is 3,800 yuan, and the supply is 4.5 fold.
Second, the first purchase of 6800 yuan, 60% off the supply.
Third, the first purchase of 9800 yuan, 30% off the supply.
Work plan for power station change 1
I. Power grid construction and transformation:
(1) main network: complete the new project of 35kv Gaozhuang