I grabbed the Consumer Price Index history off the
web, pasted into Excel,
and applied the percentage changes cumulative from 1975.
One 1998 dollar = $2.95 in 1975 dollars (ouch, those Carter administration
years! Thank goodness for Greenspan)
Therefore, an assembled Altair 8800 with 4x2K static RAM, serial, parallel,
cassette, and bus expansion, $1880 in 1975 dollars, would be the equivalent
of $5546 today.
An Apple Lisa base configuration ($9995 in 1983 dollars) would be $16,169
today.
Kai
At 11:02 AM 7/1/99 -0600, you wrote:
In a recent auction on eBay, a MITS Floppy Disk Drive was auctioned off at
$565. "WOW!" you may say, but that unit cost $1300 when new, and that was
in dollars that were a DOLLAR, and not just the price of a candy bar.
I suppose there must be a web site, somewhere, that would let you enter
a date and a US dollar amount, and would show you the equivalent value
in today's dollars, accounting for actual inflation, etc. in the
intervening years.
Actually there is something that should give some sort of results you are
looking for. Here's a useful site I found quite awhile ago that is on the
Johnson Space Center server:
and look at the "GDP
Deflator Inflation Calculator" link.
I suppose it's a valuable tool to forecast project expenses into the future
as project development can last for many years in NASA.
Regards, Chris
-- --