ABC $$Inc$.,$ produces a GPS device that is becoming popular in parts of Europe. When the company produces one of these, a printed circuit board $($ PCB $)$is used, and it is populated with several electronic components. It determines that it needs about $9,600$per year of this type of PCB $.$Demand is relatively constant throughout the year, and the ordering cost is about $ $40$per order, the holding cost is $25\%$of the price of each PCB $.$Two companies are competing to become the dominant supplier of the PCBs $,$and both have now offered discounts, as shown in the following table. ABC Chooses supplier B and orders $471$ units