Well, What do you consider a "lot" what size is this lot? I mean if thats all it takes you thats all it takes. But I usually somehow like to count fuel in and fuel away. Atleast $20 dollar per hour for myself. I dont usually have helpers. And then Business profit. Here in georgia its a little different I suppose gas is $3.48/gallon here. I charge .40/mile driven (my truck only gets 12mpg on a good day) this gives me a little swing room. Usually gas addition to and from usually only costs $8 total or if its in route less. Then I mean to me a "lot" sounds like ALOT. If you understand...I seems to me 50 cents is low....I dont even know what a "lot" is...but I will tell you right now I wouldn't do 50 cents for a residential yard much less a lot... But as long as you come out with a profit your fine. Your not even taking a hit. Sure it might suck and sure you might hate it and wish you didnt underbid but as long as your in the green then why worry about what anyone else has to say about it?