Each day, Ed walks past a rectangular athletic field on his way home from school. If the field is being used, Ed walks along two sides of the field. If the field is not being used, he cuts across from corner to corner. If he takes $300$ steps along one edge of the field and $500$ steps along the other edge, approximately how many steps can Ed save by walking from corner to corner? Round your answer to the nearest whole number of steps.

Ed can save $$ steps.