Consider the following information for Richardson Company for the prior year: - The company produced 2,550 units and sold 2,400 units, both as budgeted. - There were no beginning or ending work-in-process inventories and no beginning finished goods inventory. - Budgeted and actual fixed costs were equal, all variable manufacturing costs were affected by production volume only, and all variable selling costs were affected by sales volume only. - Budgeted per unit revenues and costs were as follows: The contribution margin earned by Richardson for the prior year was