Answer: Jasper's net purchase price unit is $357.
Since Jasper orders in large quantities, Japser is eligible for the trader's discount at 30%.
So, the price per unit will be:
![Price per unit after discount = 500 * (1 - 0.3) = 350](https://img.qammunity.org/2019/formulas/business/college/bagm7jm5k1os03e5910x0dmvspz5eeqbug.png)
Shipping costs are charged by the shipper and Jasper doesn't get any discounts from the shipper. So, we add shipping costs per unit to the discounted price per unit to arrive at the purchase price per unit.
![Purchase Price = Discounted Price + Shipping Costs](https://img.qammunity.org/2019/formulas/business/college/81fmkc7h30xzc2lenu2ss29rm6tbbd9bi1.png)
![Purchase Price = 350 + 7 = 357](https://img.qammunity.org/2019/formulas/business/college/y07he660kzuozlfjul8sewpbtt4a6togim.png)