I have done approximate calculations with such parameters: 500 customers are attracted every month because of the advertisement, every 15th client returns and buys something every 4 months, every regular customer brings 2 customers per year, if a customer came to us as a result of advertisement we loose 2 dirhams, if a customer was free for us we get 35 dirhams. Tax is 9%, licensee cost is 7000 dirhams per year, one employee can serve 1000 clients per month and gets 2500 dirhams per month, and rent of warehouse costs 1500 dirhams per month. We would become profitable in 14 months and be in zero in 2 years. As an investment, we need 36k dirhams before becoming profitable. Our IRR projection is 14%. If you want to see all calculation check out the table
click here.