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MountainMole Foods has decided to use the perfect order measurement approach to track its logistics performance. According to MountainMole, a perfect order is one that (1) is delivered on time, (2) arrives in one complete shipment, (3) arrives undamaged, (4) is correctly billed. MountainMole has the following performance figures for the past four years: (Assume that there is at most one error per order.) S ents ments a) Calculate performance for each of the four years. What is the overall trend in the performance, if any? What factors explain the results? (6 points) b) If you were looking to improve MountainMole's logistics performance, what areas might you concentrate on based on these results? (2 points)