In: Accounting
| 
 2015 Sales  | 
360000 | |||||||
| 
 2016 Gross Profit  | 
109200 | |||||||
| Cost Variance | 100800 | Unfavourable | ||||||
| A | For 2015 Cost = Sales minus profit 360000/2 = 180000 | |||||||
| For the year ended December 31, 2015, the firm sold the product at 100% above cost. (given) | ||||||||
| B | Cost for 2016 = Cost for 2015 plus cost variance | |||||||
| = 180000+100800= 280800 | ||||||||
| C | Cost for 2016 at 2015 cost level = Current cost less cost increase | |||||||
| Unit cost of product increased by 20% during 2016.(given) | ||||||||
| = 280800 - 280800*20/120 = 234000 | ||||||||
| D | percentage increase or decrease in units sold = (Cost 2016 / Cost 2015) - 1 | |||||||
| = (234000/180000) - 1 | ||||||||
| = 30% | ||||||||