The annual reimbursable expenses for an office building come to $175,000. If the building offers 50,000 square feet of rentable space, what is the amount of the expense stop in the same year for a either a new or renewing tenant?

If the expense stop for existing tenant (neither new nor renewing) that occupies 20,000 square feet of space is $3.25/sf, what is the amount of the reimbursement paid by the tenant?