Can you please explain what values are needed to fill out the PV CCA Tax Shield formula in the solution below? Also, how is the PV (SV) 19, 090.91?

Q.4: (6 Points) Tax Shield Inc. is considering a new 8-year project. The project will require purchase of new equipment costing $60,000. Installation costs are $10,000. The new facility is to be built on a piece of land that the company bought for $150,000 five years ago. The current market value of the land is $50,000. The research costs associated with the project are $10,000. The equipment has a useful life of 8 years and has a zero-salvage value. The CCA rate is 25%. Revenues are expected to grow at 5% per year, starting with $10,000 in year 1 . The expected costs are 40% of revenues per year. Inventory will increase immediately by $10,000 and no further additional working capital is required. Tax Shield WACC is estimated at 10% and their tax rate is 40%. What is the NPV of the project? I=60,000WC0=10,000Installationcosts=10,000CF0=70,000+10,000+50,000=$130,000(1point)OCF1=(10,0004000)(140%)=$3,600PV(OCF)=3,600/10%5%[1(1+5%/1+10%)8]=$22,374.44147(2points)PV(WCR)=10,000/(1+10%)8=$4665.26708(1point)PV(SV)=0PV(CCATS)=PV(CCATaxShield)=d+k(C0)(d)(T)(1+k)(1+0.5k)d+k(SVn)(d)(T)(1+k)n1=$19,090.90909(1point)NPV=CF0+PV(OCF)+PV(WCchange)+PV(WCR)+PV(CCATS)+PV(SV)NPV=130,000+22,374.44147+4665.26708+19,090.91=$83,869.3815(1point)