Question 1 (20 points): Calculate the payback period, discounted payback period, the after tax NPV, and the after-tax IRR for the following After Tax Cash Flow, assuming a minimum discount rate of 12%. Please show your work and include all the required equations. Year 0 C=25,000 1 C=10,000 2 C=9,000 3 4 5 6 7 8 1=15,000 I=14,000 I=13,000 1=12,000 I=11,000 1=10,000 9 10 1=9,000 1=8,000 11 1=7,000 12 1=6,000 ATCF