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 $(2,800$ units$)$

$$53,200$

Cost of goods sold:

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

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

$$41,600$

Total cost of goods sold

$(5,200)$

Gross profit

Selling and administrative expenses

Operating income

$\backslash$table$[[(36,400)$