Answer:
<u>Income statement for the company under variable costing</u>
Sales (80,000 units x $45)                                                             $3,600,000
Less Cost of Sales
Beginning inventory                                                          $0
Cost of goods manufactured (100,000 units x $19) $1,900,000
Cost of good available for sale                                 $1,900,000
Less Ending inventory (20,000 x $19)                      ($380,000) ($1,520,000)
Contribution                                                                                    $2,080,000
Less Period Costs 
Fixed Manufacturing  Overhead                                                     ($600,000)
Selling and administrative expenses - Fixed                                 ($400,000)
Selling and administrative expenses - Variable                             ($180,000)
Net Income / (loss)                                                                            $900,000
Explanation:
Under Variable Costing.
1.Product cost = Variable Manufacturing Costs Only
Therefore, Product cost = $4 + $11 + $ 4
                                         = $19
2.Period Cost = Fixed Manufacturing Overheads + Non - Manufacturing Costs