I am trying to develop a simple and systematic estimating process for my mowing services. Calculating the price per 1k square feet on weed control and fertilizing has been easy. Now I'm to the weekly maintenance part. Here is what I have come up with so far for finding the price. PLEASE critique me and help me on brainstorming if you have any ideas. I need to calculate mowing per 1k square feet, edging per linear foot, and string trimming per linear foot. I have come up with a realistic and basic lawn "per thousand" equation; Minimum charge ($35) + $1.00 per 1000 sq. ft. This keeps me where I like to be on half acre lawns and full acre lawns ($75-80). I based this on my $75/hour labor rate and 40k square feet taking 45 minutes. The problem is that last year I kept records of our time (me and my guy) on lawns, but didn't keep time on separate tasks; mowing, edging, and trimming. So I need to figure out exactly how to reduce my mowing price per thousand proportionally in order to add the edging and trimming prices INTO that equation and still keeping on AVERAGE the same price per thousand. (Normally the amount of trimming and edging is directly correlated to the size of the lawn. On commercial accounts however, there can be a much more significant amount of edging and trimming. Ideas? Help?