Enviro-Pure Case - After Studying the Case given to you as the associated le, answer the following two questions: Some Guidance When you examine this case and the business, you should realize that such businesses are entered into not only for the sales of the primary product (water purifier installations) but over time the earnings come from secondary, residual or recurring sales (the sale of replacement filters). This is true for a number of products such as printers, some medical devices, and so on. Strategies and estimates must cover these residual or recurring sales. Question 1: Based on the data in the case and after making logical assumptions make an estimate of the Revenues, Costs and Profits of the firm for five years. Please specify the assumptions behind your calculations and show how you have arrived at your 'numbers.' There is enough numerical information in the case to make these estimates, which will help you to understand the business. In your calculations basically assume that the firm is functioning at its current level, except for the changes in replacement sales of filters