Go to Jeff Salisbury LWGate Home Page.From: David Hodges <dhodges@recol.com>
Subject: Inflation Calculator
Date: Mon, 24 Jan 2000 15:08:56 -0500
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I work at a Web Development House. We have a client to wants to put a
number of financial calculators on their web site. Most of them, like a
loan payment schedule and a present value calculator I think I know how to
do. But they want a simple inflation calculator. The client puts in the
starting year, starting amount, and ending year, and the calculator shows
the ending amount as adjusted by inflation.
So here are my questions:
1. Where can I get a table of annualized CPI data that shows the percent
change from year to year, going back, say, 100 years?
2. When I have the CPI per cent change from year to year, is the
calculation as simple as, for any given year, multiplying the current
dollar amount by 1 minus the CPI per cent change for that year?
I.E. if X = the dollar amount I had at the beginning of the year
C = CPI percent change for the year (as a decimal number)
Y = the dollar amount I have left at the end of the year adjusted for
inflation
THEN
Y = X * (1 - C)
Or am I missing something?
Thanks,
David
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