Could you please help me solve this problem?

Alliance Enterprises is considering extensively modifying their manufacturing equipment. The modications will result in less wastage of materials, which will reduce variable manufacturing costs and introduce changes to the production process that will improve product quality. This will allow Alliance to increase the selling price of the product. Annual fixed costs are expected to increase to $810,000 if the modifications are made. Expected xed and variable costs as well as the selling prices are shown below: Existing Modified Cost Item Equipment Equipment Selling price per unit $ 8 $ 10 Variable cost: per unit 4 4 Fixed costs 400,000 810,000 Required: 1. Determine the break-even point in units for the two machines. Existing equipment Modied equipment 2. Determine the sales level in units at which the modified equipment will achieve a 20% target prot-to-sales ratio (ignore taxes). 3. Determine the sales level in units at which the modified equipment will achieve $176,400 in after-tax operating income. Assume a tax rate of 30%. 4. Determine the sales level at which profits will be the same for either the existing or modified equipment