Blue Co produces notebooks. The relevant range for the facility is $0-10,000$ units. If that is exceeded, a new machine must be rented for $$1,600,$ and the new machine will increase the capacity by $1,000$ units. Information is given below.

Variable cost of goods sold per unit $,$$$5\mathrm{.}00$

Fixed cost of goods sold per unit $,$$$4\mathrm{.}00$

Variable selling expenses per unit $,$$$1\mathrm{.}50$

Fixed selling expenses per unit $,$$$1\mathrm{.}00$

Variable administrative expenses per unit $,$$$2\mathrm{.}00$

Fixed administrative expenses per unit $,$$$1\mathrm{.}50$

Selling price $,$$$16\mathrm{.}50$

Number of units produced and sold $,9,000$

a$.$ Calculate variable cost per unit. $($Show your calculations$)$

b$.$ Calculate fixed cost per unit. $($Show your calculations$)$

c$.$ Calculate unit product cost. $($Show your calculations$)$

d$.$ If the company produces $1,000$ units more, how much additional production cost will incur? $($Show your calculations$)$

e$.$ If the company produces $2,000$ units more, how much additional production cost will incur? $($Show your calculations$)$