$100 in 2004 is worth $102.72 in 2005

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Value of $100 from 2004 to 2005

$100 in 2004 is equivalent in purchasing power to about $102.72 in 2005. The dollar had an average inflation rate of 2.72% per year between 2004 and 2005, producing a cumulative price increase of 2.72%.

This means that prices in 2005 are 1.03 times as high as average prices since 2004, according to the Bureau of Statistics consumer price index.

The inflation rate in 2004 was 2.28%. The inflation rate in 2005 was 2.72%. The 2005 inflation rate is higher compared to the average inflation rate of 2.62% per year between 2005 and 2025.

⌃
Inflation from 2004 to 2005
Average inflation rate2.72%
Converted amount
$100 base		$102.72
Price difference
$100 base		$2.72
CPI in 200480.800
CPI in 200583.000
Inflation in 20042.28%
Inflation in 20052.72%
$100 in 2004$102.72 in 2005
Recent AUD inflation
Annual Rate, the Bureau of Statistics CPI
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How to calculate inflation rate for $100, 2004 to 2005

Our calculations use the following inflation rate formula to calculate the change in value between 2004 and 2005:

CPI in 2005 CPI in 2004
×
2004 AUD value
=
2005 AUD value

Then plug in historical CPI values. The Australian CPI was 80.8 in the year 2004 and 83 in 2005:

8380.8
×
$100
=
$102.72

$100 in 2004 has the same "purchasing power" or "buying power" as $102.72 in 2005.

To get the total inflation rate for the 1 years between 2004 and 2005, we use the following formula:

CPI in 2005 - CPI in 2004CPI in 2004
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

83 - 80.880.8
×
100
=
3%

Data source & citation

Raw data for these calculations comes from the government of Australia's annual (CPI) as provided by the Reserve Bank of Australia. The consumer price index was established in 1922 and is tracked by Australian Bureau of Statistics (ABS).

You may use the following MLA citation for this page: “2004 dollars in 2005 | Australia Inflation Calculator.” Official Inflation Data, Alioth Finance, 7 May. 2025, https://www.officialdata.org/2004-AUD-in-2005.

Special thanks to QuickChart for their chart image API, which is used for chart downloads.

Ian Webster

About the author

Ian Webster is an engineer and data expert based in San Mateo, California. He has worked for Google, NASA, and consulted for governments around the world on data pipelines and data analysis. Disappointed by the lack of clear resources on the impacts of inflation on economic indicators, Ian believes this website serves as a valuable public tool. Ian earned his degree in Computer Science from Dartmouth College.

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Inflation from 2004 to 2005
Average inflation rate2.72%
Converted amount
$100 base		$102.72
Price difference
$100 base		$2.72
CPI in 200480.800
CPI in 200583.000
Inflation in 20042.28%
Inflation in 20052.72%
$100 in 2004$102.72 in 2005