Please solve by hand and not excel

Prayathna, a manufacturer of car batteries, is currently developing a new model (Prayathana i20) that will be released on the market when development is complete. Prayathna is concerned about the development cost and time. It is also worried about market estimates of the sales of the new i 20 model. The cost estimates and forecast are given in the table below. Use the data above to develop a base case analysis. The project schedule is shown below with timings of the cash flows. What are the yearly cash flows and their present value of this project (discounted at 12\%)? What is the net present value? For both the tables, modify the years to start from year 0 . You will have year 0,1,2,3, and 4 as shown