Anggun Enterprise makes wireless microphone for Europe markets. The company receive orders of 60,000 units in the first term and 45% more in second term. Due to a rising demands, the company runs 50 weeks in a year. Commonly the company produces the microphone at daily rate of 3% from yearly demand. The production run is $300 quarterly and the companys holding cost is $5 annually. Once the order takes place, the products will be transported within 3 weeks. The standard deviation is set up at 15 units and the safety stock level is about 4%.

Based on the above statement, answer all the following questions:

1. What is the optimal size order quantity? 2. What will be the annual inventory costs? 3. The optimal number of production runs (orders) per year. 4. The optimum cycle times. 5. The maximum inventory levels.