TYPO in problem, dep asset is 1,200,000. What is solution to number 3? Why is it important?

The following data pertains to a 4-year project being considered by Mattel Industries A depreciable asset that costs $1,2000,000 will be acquired on January 1. The asset which is expected to have a $200,000 salvage value at the end of 4 years, qualifies as 3-year Property under the Modified Accelerated Cost Recovery System (MACRS). The new asset will replace an existing asset that has a tax basis of $150,000 and can be sold on the same January 1 for $180,000. The project is expected to provide added annual sales of 30,000 units at $20. Additional cash operating costs are variable, $12 per unit and fixed, $90,000 per year. A $50,000 working capital investment, fully recoverable, is required at the end of the fourth year. Metro is subject to $40% income tax rate and rounds all computations to the nearest dollar. Assume that any gain or loss affects the taxes paid at the end of the year in which it occurred. The company uses the net present value method to analyze invests and will employ the following factors and rates. The discounted cash flow for the fourth year MACRS depreciation on the new asset is: Discounted, net-of-tax amount that relates to disposal of the existing asset is: The expected incremental sales will provide a discounted, net-of-tax contribution margin over 4 years of: The overall discounted-cash-flow impact of the working capital investment on Metro's project is