Pamlico Manufacturing Ltd has the following information given in the table below. Sales per unit Variable production cost per unit Variable administration sales and distribution per unit Fixed production costs Fixed administration sales and distribution Opening inventory in units Units produced N$ 12.50 7.50 1.00 37 500 18 750 2 500 25 000 At the beginning of December 2018, there were 2 500 units in inventory. Required: a) 12 500 units b) 18 750 units c) 25 000 units Draw up a statement of comprehensive income according to marginal costing principles for three different levels of sales, for the month of December.