Please show detailed workings

Schultz Company reported the following information about the production and sales of its only product: a) Calculate the following for Schultz Company i) The number of units sold ii) The number of units produced iii) The marginal cost per unit. iv) The total cost per unit v) The value of ending inventory under Variable costing. Total costing vi) The cost of goods sold under Marginal costing Total costing b) Prepare a marginal costing income statement clearly showing contribution margin and operating income. c) What is the gross profit under total costing