Lisa Rocks Ltd manufactures landscaping equipment. Below is an income statement in the traditional format for Lisa Rocks Ltd with a sales volume of 8,000 units.

Sales Revenue	32,000
Cost of goods sold ($6,000 + $2.10 per unit)	22,800
Gross Profit	9,200
Operating expenses:
Selling ($1,200 + $0.10 per unit)	2,000
Administration ($4,000 + $0.20 per unit)	5,600
Operating Profit	1,600

1. Prepare an income statement in the contribution margin format.
2. Calculate the contribution margin ratio.
3. Calculate operating profit/loss if the volume changes to 12,000 units.
4. Refer back to part (a) Calculate break-even in units AND in dollars. Show your workings.