Should know the answer to this but it's bugging me... Gave an estimate to a contract annual prospect today. We agreed on price. After re-figuring time involved, came out to app. $25 more per month than agreed on price, (after going home and using the formula for time involved times 40 visits per year etc., etc.) These folks were referred by relatives that are a very lucrative account of mine. I'm a professional and should know that when a price is agreed to, thats the end of story. However, for some reason it's bothering me. Any one have second thoughts after agreeing on contract price? I think I should suck it up and do the job for the first year as I should know what the hell I'm doing when giving estimates and not re-evaluate my numbers later. My problem, not theirs. Comments please.