$($Class Activity$)$ A manufacturing firm has gone out on bid to procure a component. Expected demand is $700$ units per month. The item can be purchased from either Vendor A or Vendor B$.$ Their price lists are shown in the table. Ordering cost is $$50,$ and annual holding cost per unit is $30\%$ of the item's value.

Vendor A

Vendor B

Quantity Unit Price Quantity Unit Price

$\backslash$table$[[1-499,$$$16\mathrm{.}00,1-399,$$$16\mathrm{.}10$