Hello everyone, I am learning g adwords now. I have a question about the Max Bid Price. Say i am promoting an ebook, earn per sale is $30. Now I set up a new ad campaign, new ad group, set the ad to show only on Google Search, no search network & content network, and google ask a minimun bid price $0.1 for every keywords I bid. My question is how much should I set the Max Bid Price when I set up a ad? Hope I explain clearly and I'll appreciate if anyone can give me some help. Thanks.