$100 in 1975 is worth $86.88 in 1974

Value of $100 from 1975 to 1974

$100 in 1975 is equivalent in purchasing power to about $86.88 in 1974. The dollar had an average inflation rate of 15.11% per year between 1974 and 1975, producing a cumulative price increase of -13.12%.

This means that prices in 1974 are 13.12% lower than average prices since 1975, according to the Bureau of Statistics consumer price index.

The inflation rate in 1974 was 15.83%. The inflation rate in 1975 was 15.11%. The 1975 inflation rate is higher compared to the average inflation rate of 4.45% per year between 1975 and 2024.


Inflation from 1975 to 1974
Average inflation rate15.11%
Converted amount
$100 base
$86.88
Price difference
$100 base
$-13.12
CPI in 197516.000
CPI in 197413.900
Inflation in 197415.83%
Inflation in 197515.11%
$100 in 1975$86.88 in 1974

Recent AUD inflation
Annual Rate, the Bureau of Statistics CPI
Download

How to calculate inflation rate for $100, 1974 to 1975

Our calculations use the following inflation rate formula to calculate the change in value between 1974 and 1975:

CPI in 1974 CPI in 1975
×
1975 AUD value
=
1974 AUD value

Then plug in historical CPI values. The Australian CPI was 16 in the year 1975 and 13.9 in 1974:

13.916
×
$100
=
$86.88

$100 in 1975 has the same "purchasing power" or "buying power" as $86.88 in 1974.

To get the total inflation rate for the 1 years between 1974 and 1975, we use the following formula:

CPI in 1974 - CPI in 1975CPI in 1975
×
100
=
Cumulative inflation rate (1 years)

Plugging in the values to this equation, we get:

13.9 - 1616
×
100
=
-13%

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: “$100 in 1975 → 1974 | Australia Inflation Calculator.” Official Inflation Data, Alioth Finance, 28 Mar. 2024, https://www.officialdata.org/1975-AUD-in-1974?amount=100.

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

in2013dollars.com is a reference website maintained by the Official Data Foundation.


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 1975 to 1974
Average inflation rate15.11%
Converted amount
$100 base
$86.88
Price difference
$100 base
$-13.12
CPI in 197516.000
CPI in 197413.900
Inflation in 197415.83%
Inflation in 197515.11%
$100 in 1975$86.88 in 1974