You have been asked to explain the difference between NOI for
absorption costing and variable costing for Duncan Inc. You have
the following information regarding the performance for the
year:
Absorption
Variable
Sales
$       1,260,000
Sales
    1,260,000
Cost of goods sold
            
810,000
Variable cost of goods sold
       720,000
Gross margin
            
450,000
Variable selling and administrative expenses
       120,000
Selling and administrative expenses
            
195,000
Contribution margin
       420,000
NOI
$         
255,000
Fixed manufacturing overhead
       120,000...