I am stuck on this, can someone try and solve so I can understand please! Thank you so much

The Bean Pie Factory, makers of famous bean pie's. planned to have 8,000 pounds of beans (raw material for making beat pie's) on hand at the beginning of May. Because of a projected increase in demand, the Factory planned on having 15,000 pounds of beans on hand to begin the month of June. The May production requirements called for 300,000 pounds of beans. How many pounds of beans should the Factory purchase in May