Job bid I lost

I bid a lot clearing a couple weeks ago the lot size .86 acre just a average building lot in a subdivision pretty flat easy access anyways the way I bid it I'll do the tractor work and I'll hire out 30 yd cans I figured 2-3 days max depending on getting the cans dumped as they should I figured 10 cans @ going rate of $350 and me and 2 guys and 2 pieces of equipment @2500 I thought I was low what do you guys think just clear haul away and smooth lot

Job bid I lost