On April $30,$ the end of the first month of operations, Joplin Company prepared the following income statement, based on the absorption costing concept:

Joplin Company

Absorption Costing Income Statement

For the Month Ended April $30$

Sales $(2,700$ units$)$ $$91,800$

Cost of goods sold:

Cost of goods manufactured $(3,200$ units$)$ $$76,800$

Inventory, April $30(400$ units$)(9,600)$

Total cost of goods sold $(67,200)$

Gross profit $$24,600$

Selling and administrative expenses $(15,170)$

Operating income $$9,430$