Hello, I am in the process of setting up a new adwords campaign. I understand that to determine max CPC you must use a formula that involves your profit per conversion, desired return on ad spend, and your conversion rate for that particular keyword or ad group. However, what if you have no history for that particular keyword or ad group. How will you know what to expect as a conversion rate? I currently used 1% as my estimated conversion rate, and my ideal max CPC for my keywords was way below all 1st page bid recommendations. It's been about 16 hours since entering my bids, and I have no impressions. Any advice on what the best thing to do would be?