In: Accounting
Frances Manufacturing makes a product with total unit manufacturing costs of $64, of which $36 is variable. No units were on hand at the beginning of 2015. During 2015 and 2016, the only product manufactured was sold for $96 per unit, and the cost structure did not change. Frances uses the first-in, first-out inventory method and has the following production and sales for 2015 and 2016:
| 
 Units Manufactured  | 
 Units Sold  | 
|
| 
 2015  | 
 100,000  | 
 70,000  | 
| 
 2016  | 
 100,000  | 
 120,000  | 
a) Gross Profit using Absorption Costing:
| Income statement (Absorption Costing) | 2015 | 2016 | ||
| Sales | 6720000 | 11520000 | ||
| Less: Cost of goods sold | 4480000 | 7680000 | ||
| Opening | 0 | 1920000 | ||
| Add: Units Manuf. | 6400000 | 6400000 | ||
| Less: Closing Inventory | 1920000 | 640000 | ||
| Gross Margin | 2240000 | 3840000 | 
b) Gross Profit using Variable Costing:
| Income statement (Variable Costing) | 2015 | 2016 | ||
| Sales | 6720000 | 11520000 | ||
| Less: Cost of goods sold | 2520000 | 4320000 | ||
| Opening | 0 | 1080000 | ||
| Add: Units Manuf. | 3600000 | 3600000 | ||
| Less: Closing | 1080000 | 360000 | ||
| Contribution Margin | 4200000 | 7200000 | 
Working Notes:
| 2015 | 2016 | |
| Units Produced | 100000 | 100000 | 
| Units Sold | 70000 | 120000 | 
| Cost per Unit under Variable costing | 36 | 36 | 
| Cost per Unit under Absorption costing | 64 | 64 | 
| (Variable cost + Fixed prod cost/Units producted) | ||
| Ending Inventory using Variable costing | 1080000 | 360000 | 
| (Closing Inventory*Cost per unit under variable costing) | ||
| Ending Inventory using Absorption costing | 1920000 | 640000 | 
| (Closing Inventory*Cost per unit under variable costing) | ||
| Calculation of closing inventory: | ||
| Opening | 0 | 30000 | 
| Add) Produced | 100000 | 100000 | 
| Less) sold | 70000 | 120000 | 
| Closing | 30000 | 10000 |