Mark owns an oil pipeline that will generate an $$8$ million cash return over the coming year. The pipeline's operating costs are negligible, and it's expected to last for a very long time. Unfortunately, the volume of oil shipped ins declining, and cash flows are expected to decline by $8\%$ per year. The discount rate is $12\%.$

What is the PV of the cash flows if the pipeline is scrapped after $30$ years?