Improvement: <br /> $13,912,741 <br /> - $0.0893 per sq. ft. <br /> 155,770,560 sq. ft. impervious surface area <br /> Total Unit Cost per Sq: Ft. Impervious Surtace Area = <br /> (Reimbursement + Improvement) _ $0.0811 + $0.0893 = $0.170 <br /> 1.5 Parks System Cost of Service: <br /> General,Formula: <br /> Cost per. person X Persons per household = Cost per EDU <br /> <br /> . Calculation: <br /> $584.63 X 2.3 = $1,344.65 <br /> (per EDU) <br /> City of Eugene SDC Methodologies Fee Schedule & Formulas; <br /> <br />