On this subject I said I was looking for more references but here is my original.

page 238 "Glory Road" by Bruce Catton, 1952.

"No fewer than 800,000 immigrants arrived during the war years, bringing with them something like $400,000,000 in cash, and if the war was costing the unheard-of sum of two million dollars a day, there would be no trouble about paying for it."

...I was off by one zero.

David