EE printing is in the evaluation process for the acquisition of a new computer system. The total depreciable base (cost plus installation) is $180,000. The new equipment will increase Earnings before depreciation and taxes by $60,000 during years 1 to 3 and $32,000 during years 4 to 6. EE marginal tax rate is 40% and Cost of Capital is 11% Calculate the Payback Period