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 $$300$ on materials, $$400$ on labor and their energy costs were $$50.$ In that month they produced $1,500$ vases. With the robot, they expect the following costs: materials$--$$$250,$ labor$--$$$150,$ energy$--$$$150,$ and capital$--$$$450.$

What was the productivity of the older system?