Edward's Pottery is looking into purchasing a simple robot to help form clay to turn into vases. They believe that such a machine would greatly improve productivity. Last month, Edward's spent $300 an materials, $400 on labor and their energy costs were 550 , In that month they produced 1.500 vases. With the robot, they expect the following costs: materials- $250, labor- $150, energy- $150, and capital- $450. How many vasis would the new systew have to produce in order to equal the productivity of the old system