OPTIMUM INVENTORY POLICY AT PT. SENAHOY OPTIKA PRATAMA IN INDONESIA

Purpose of this research is to determine optimum inventory policy at PT. SENAHOY OPTIKA PRATAMA that located in Bandung, Indonesia. This research discussed demand forecasting for lens and contact lens in 2015, to be used in calculating inventory cost of lens and contact lens. Using QM for Windows 2 software to determine demand forecasting of lens and contact lens, and EOQ model to determine inventory policy and minimizing costs. The result showed that the best forecasting method is Linear Regression model and using EOQ model could have saved the company's cost more than 20 % from procuring those products. The 2015 forecasted demand for lens and contacts lens respectively are 2.524,08 and 1.436,08 boxes. Optimum inventory policies for lens and contact lens respectively are to purchase 207,45 pieces when reorder points reach 207,45 pieces with 25 times order per year and to purchase 200,12 boxes when reorder point reaches 118,05 boxes with 7,18 times order per year. The EOQ model can reduce inventory costs over 90 million Rupiah.