Consider the following information for an important purchased part.

Annual requirements $($R$)=4,000$ units

Order cost $($S$)=$ $$250$ per order

Holding rate $($k$)=20\%$

Unit cost $($C$)=$ $$10$ per unit

Lead time $($LT$)=8$ days

Number of days per year $=360$ days

compute the total annual cost $($hint: do not include the total purchase cost, the answer is not $$40,000$ or $$42,000)$