In a laboratory environment, work is being carried out on a relatively new process, and it is planned to produce and sell 50,000 units of the product throughout its service life. The unit selling price of the product is $25, and the total capital investment for the process is $1,000,000. The estimated product cost, including depreciation, over its service life is $200,000. Assuming a service life of 15 years for the process, investigate whether this investment is feasible according to the Payback Period (PBP) method (Income tax rate can be assumed as 35%). Depreciation method: Straight-line depreciation, Payback period: 15 years.