Given the following data on a hardware item stocked by Andreas Wieland$$s paint store in Copenhagen,

D $=2,000$ units

S $=$ $$10$

H $=$ $$1$

P $=$ $$1$

Discount price $=$ $$\mathrm{.}75$ per unit

Quantity needed to quality for discount $=2,000$ units

a$)$ Should the quantity discount be taken? Why?

b$)$ If the discount price changes to $$\mathrm{.}65$ per unit, how does this impact your decision in the previous question?