3) (4 points) Martz Corporation manufactures a single product. The following data pertain to the company's operations over the last two years: Variable costing net operating income, last year ......... Variable costing net operating income, this year .......... Beginning inventory, last year Ending inventory, last year ..... Ending inventory, this year.. Fixed manufacturing overhead cost per unit both last year and this year.. $85,500 $105,400 O units 1,300 units 800 units $4 per unit a. (2 points) Determine the absorption costing net operating income for last year. b.(2 points) Determine the absorption costing net operating income for this year