This is relative, for example, if you decide to sell your E-book for a token of N2,000 and only 500 people buy it, you will make N1,000,000, what if you sell it for N5,000 and 500 people buy it, that is N2,500,000 (Two Million, Five Hundred Thousand Naira). Please note that the volume of sales is dependent on your marketing strategy and the type of audience your E-book attracts. There is no one size fits all.