I need help calculating:

Operating Cash Flow for years 1 through 5

After-tax cash flow of the project disposal

NPV of the project

NPV Mathews Mining Company is looking at a project that has the following forecasted sales first year sales are 6,800 units and sales will grow at 13% over the next four years a five-year project) The price of the product will start at S123.00 per unit and will increase each year at 6% The production costs are expected to be 60% of the current year's sales price. The manufacturing equipment to aid this project will have a total cost including installation of $1,300,000. It will be depreciated using MACRS,?, and has a seven-year MACRS life classification. Fixed costs will be $55,000 per year. Mathews Mining has a tax rate of 30%. What is the operating cash flow for this project over these five years? Find the NPV of the project for Mathews Mining if the manufacturing equipment can be sold for S70,000 at the end of the five-year project and the cost of capital for this project is 11%