<p>Ram Roy's firm has developed the following supply, demand,cost, and inventory data.</p><p> </p><table align="center" border="1"><tbody><tr><td colspan="5"><p>Supply Available</p></td></tr><tr><td><p><strong>Period</strong></p></td><td><p><strong>Regular Time</strong></p></td><td><p><strong>Overtime</strong></p></td><td><p><strong>Subcontract</strong></p></td><td><p><strong>Demand Forecast</strong></p></td></tr><tr><td><p>1</p></td><td><p>30</p></td><td><p>15</p></td><td><p>15</p></td><td><p>50</p></td></tr><tr><td><p>2</p></td><td><p>35</p></td><td><p>15</p></td><td><p>15</p></td><td><p>55</p></td></tr><tr><td><p>3</p></td><td><p>30</p></td><td><p>15</p></td><td><p>15</p></td><td><p>45</p></td></tr></tbody></table><table align="center"><tbody><tr><td><p>Initial inventory</p></td><td><p>30</p><p>units</p></td></tr><tr><td><p>Regular-time cost per unit</p></td><td><p>$100</p></td></tr><tr><td><p>Overtime cost per unit</p></td><td><p>$150</p></td></tr><tr><td><p>Subcontract cost per unit</p></td><td><p>$200</p></td></tr><tr><td><p>Carrying cost