At first I thought these numbers were a typo

From this story:

To entice private investors like hedge funds and private equity
firms to take part, the F.D.I.C. will provide nonrecourse loans – that
is, loans that are secured only by the value of the mortgage assets
being bought – worth up to 85 percent of the value of a portfolio of
troubled assets.

The remaining 15 percent will come from the
government and the private investors. The Treasury would put up as much
as 80 percent of that, while private investors would put up as little
as 20 percent of the money, according to industry officials. Private
investors, then, would be contributing as little as 3 percent of the
equity, and the government as much as 97 percent.