Three contractors are bidding to fix a broken fence at the White House in D.C.  
One from New Jersey , another from Tennessee and the third, California. They go with a White House official to examine the fence.
The California contractor takes out a tape measure and does some Measuring, then works some figures with a pencil. "Well,"  he says, "I figure the job will run about $900: $400 for materials, $400 for my crew and $100 profit for me."

The Tennessee contractor also does some measuring and figuring, then says, I can do this job for $700: $300 for materials, $300 for my crew and $100 profit for me."

The New Jersey contractor doesn't measure or figure, but leans over to the White House official and whispers, "$2,700."

The official, incredulous, says, "You didn't even measure like the other guys!  How did you come up with such a high figure?"
The New Jersey contractor whispers back, "$1,000 for me, $1,000 for  you, and we hire the guy from Tennessee to fix the fence."