We recommend a daily budget of 100 USD but this is not always used up. As for sales, there are limits as to what results we can get, and we are afraid to say that sales are not something we can control. We cannot make buyers buy and we do not say we can. We are a launch company. We can get you to page 1 and we can give you all the tools to help you to be successful, helping to convert clicks into sales, and optimize your long-term ACOS but sales is certainly not something we guarantee.