please solve it within 15mins operations management

Peter Gyan is the SRC president for University of Ghana. During the long vacation, the SRC promotes the Legon brand with the wearing of specialised produced t-shirts. The t-shirts feature a special screen-printed logo that can be expensive to make. Peter's supplier, Appointed Times, has quoted three prices for the shirts with differing logo packages, as shown below. Assuming the shirts would be sold at the same price regardless of the logo package, create a decision rule for Peter to use based on anticipated sales volume. Below 50 units choose Package Between 50 units and 100 units choose Package Above 100 units choose