JKL Furniture Ltd. has provided the following cost data for different levels of production:

Particulars of Costs	5,000 units	7,500 units	10,000 units
Direct Material	₹25,00,000	₹37,50,000	₹50,00,000
Direct Labour	₹20,00,000	₹30,00,000	₹40,00,000
Total Factory Overheads	₹15,00,000	₹22,50,000	₹30,00,000

You are required to calculate:

1. The total cost at an activity level of 9,000 units.
2. The cost per unit at this activity level.
3. The selling price per unit if a profit margin of 15% on cost is desired.
4. The breakeven point in units if the fixed overheads are ₹8,00,000 per month.