"The owners of a chain of fast-food restaurants spend $60000 installing donut makers in all their restaurants. This is expected to increase cash flows by $13000 per year for the next 5 years. The discount rate is 5.3%. What is the net present value of installing the donut makers?"" Note: Express your answers in strictly numerical terms. For example, if the answer is $500, write enter 500 as an answer."