Snappy Yard has developed a new product, the Automatic Lawnmower. Snappy$$s paid $$120,000$ for a marketing survey to determine the product$$s viability. It is felt that Automatic Lawnmower will generate sales of $$1,235,000$ per year. The fixed costs will be $$250,000$ annually, and variable costs will amount to $20\%$ of sales. The equipment necessary for the production of the Automatic Lawnmower will cost $$865,000.$ It will be depreciated in a straight$-$line manner for the four years of the product life $($as with all fads, it is felt the sales will end quickly$).$ This is the only initial cost for the production. Snappy$$s has a tax rate of $21\%$ and a required return of $12\%.$ Calculate the OCF, payback period, NPV$,$ and IRR.