$100 in 1989 is worth $107.48 in 1990

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Value of $100 from 1989 to 1990

$100 in 1989 is equivalent in purchasing power to about $107.48 in 1990. The dollar had an average inflation rate of 7.48% per year between 1989 and 1990, producing a cumulative price increase of 7.48%.

This means that prices in 1990 are 1.07 times as high as average prices since 1989, according to the Bureau of Statistics consumer price index.

The inflation rate in 1989 was 7.43%. The inflation rate in 1990 was 7.48%. The 1990 inflation rate is higher compared to the average inflation rate of 2.57% per year between 1990 and 2026.

⌃
Inflation from 1989 to 1990
Average inflation rate 7.48%
Converted amount
$100 base		 $107.48
Price difference
$100 base		 $7.48
CPI in 1989 53.500
CPI in 1990 57.500
Inflation in 1989 7.43%
Inflation in 1990 7.48%
$100 in 1989 $107.48 in 1990
Recent AUD inflation
Annual Rate, the Bureau of Statistics CPI
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How to calculate inflation rate for $100, 1989 to 1990

Our calculations use the following inflation rate formula to calculate the change in value between 1989 and 1990:

CPI in 1990CPI in 1989
×
1989 AUD value
=
1990 AUD value

Then plug in historical CPI values. The Australian CPI was 53.5 in the year 1989 and 57.5 in 1990:

57.553.5
×
$100
=
$107.48

$100 in 1989 has the same "purchasing power" or "buying power" as $107.48 in 1990.

To get the total inflation rate for the 1 years between 1989 and 1990, we use the following formula:

CPI in 1990 - CPI in 1989CPI in 1989
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

57.5 - 53.553.5
×
100
=
7%

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: “1989 dollars in 1990 | Australia Inflation Calculator.” Official Inflation Data, Alioth Finance, 12 Jun. 2026, https://www.officialdata.org/1989-AUD-in-1990.

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 1989 to 1990
Average inflation rate 7.48%
Converted amount
$100 base		 $107.48
Price difference
$100 base		 $7.48
CPI in 1989 53.500
CPI in 1990 57.500
Inflation in 1989 7.43%
Inflation in 1990 7.48%
$100 in 1989 $107.48 in 1990