A newly-built business property, containing a space for a store and two offices, can be purchased for $1,200,000. A prospective buyer estimates that during the next 10 years he can obtain annual rentals of at least $456,460 from the property, and the annual out-of-pocket expenditure will not exceed $60,000. He believes that he should be able to dispose of the property at the end of 10 years at not less than $700,000. Annual taxes and insurance cell total 2.5% of the first cost. Assume he has sufficient capital to purchase the property, and that the minimum attractive return (MARR) he is obtaining from his capital is 20%.

Compute the payback period of the investment. (in two decimal places)