Natasha's Flowers, a local florist, purchases fresh flowers each day at the local flower market. The buyer has a budget of $960 per day to spend. Different flowers have different profit margins, and also a maximum amount the shop can sell. Based on past experience the shop has estimated the following NPV of purchasing each type: What combination of flowers should the shop purchase each day? The profitability index for each choice is: (Round to three decimal places.)