O$$Brien Company manufactures and sells one product. The following information pertains to each of the company$$s first three years of operations:

Variable costs per unit:

Manufacturing:

Direct materials $ $27$

Direct labor $ $15$

Variable manufacturing overhead $ $4$

Variable selling and administrative $ $4$

Fixed costs per year:

Fixed manufacturing overhead $ $510,000$

Fixed selling and administrative expenses $ $110,000$

During its first year of operations, O$$Brien produced $97,000$ units and sold $71,000$ units. During its second year of operations, it produced $83,000$ units and sold $104,000$ units. In its third year, O$$Brien produced $84,000$ units and sold $79,000$ units. The selling price of the company$$s product is $$79$ per unit.

$.$ Assume the company uses variable costing and a FIFO inventory flow assumption $($FIFO means first$-$in first$-$out. In other words, it assumes that the oldest units in inventory are sold first$)$:

Compute the unit product cost for Year $1,$ Year $2,$ and Year $3.$

Prepare an income statement for Year $1,$ Year $2,$ and Year $3.$

$.$ Assume the company uses variable costing and a LIFO inventory flow assumption $($LIFO means last$-$in first$-$out. In other words, it assumes that the newest units in inventory are sold first$)$:

Compute the unit product cost for Year $1,$ Year $2,$ and Year $3.$

Prepare an income statement for Year $1,$ Year $2,$ and Year $3.$

Assume the company uses absorption costing and a FIFO inventory flow assumption $($FIFO means first$-$in first$-$out. In other words, it assumes that the oldest units in inventory are sold first$)$:

Compute the unit product cost for Year $1,$ Year $2,$ and Year $3.$

Prepare an income statement for Year $1,$ Year $2,$ and Year $3.$

Assume the company uses absorption costing and a LIFO inventory flow assumption $($LIFO means last$-$in first$-$out. In other words, it assumes that the newest units in inventory are sold first$)$:

Compute the unit product cost for Year $1,$ Year $2,$ and Year $3.$

Prepare an income statement for Year $1,$ Year $2,$ and Year $3.$