Emery Pharmaceutical uses an unstable chemical compound that must be kept in an environment where both temperature and humidity can be controlled. Emery uses $800$ ?pounds per month of the chemical, estimates the holding cost to be $50\%$ ?of the purchase price $($ because of spoilage $),$ ?and estimates order costs to be $ $47$ ?per order. The cost schedules of two suppliers are as follows:

$\backslash$ table $[[$ Vendor $1,$ Vendor $2],[$ Quantity $,$ Price $/$ lb $,$ Quantity,Price $/$ lb $],[1-499,$ $ $17\mathrm{.}00,1-399,$ $ $17\mathrm{.}10$