Rahul has an amount of N 300,000 which is invested in a business. He desires 15% return on his fund. It is known from the past cost data analysis that fixed costs are N 150,000 per annum and variable costs of operation are 60% of sales. Determine sales volume to get 15% return. Also tell shut down point of the business, if he would spend N 50,000 even if business must be closed