Nearly 80 percent of the existing 160 units have sold.

And 18 percent of the houses sold for $750,000 to $1 million.

"I'm sure that 80 percent of their products don't sell because they have no reason to exist," he said.

"And maybe 25 percent or more of my books sell internationally."

An estimated 5 percent of the nation's doctors now sell medication directly to their patients.

I know that if they could get a fair price, 30 percent of them would sell.

Of the 356 lots on the block, 73 percent sold.

Another 18 percent sold for $750,000 to $1 million.

And 85 percent of the 121 million baseball hats sold each year have nothing to do with sports.

"And besides, less than 5 percent of Americans buy or sell stocks in a year."