Please explain all steps as to what your doing. I need each value for the blanks and part B. Thanks

5 (20 points). John's Butter and Egg Business is such that he pays an effective tax rate of 40%. John is considering the purchase of a new Turbo Churm for $40,000. This churn is a special handling device for food manufacture and has an estimated life of 4 and a salvage value of $5,000. The new churm is expected to generate an addition gross income of $15,000 for each of the 4 years of use. If John works with an after- tax MARR of 14%, and use DDB depreciation, help him to decide if he should buy the churn with federal tax consideration. years The DDB depreciation schedule. 1-201/4)'40000 2 201/4) 20000 $40,000 $20,000 $10.000$10.000 -$20,000 3 2(0/4*10000$5.000 SO $5,000 (a) (10 pts) Find before-tax cash flows (BTCF) and after-tax cash flows (ATCF). 3 (b) (10 pits) Should he buy the churn and why