Audio equipment priced at $20 in 2009 $11.07 in 2018

Historical Price Inflation for Audio equipment

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Prices for Audio Equipment, 2009-2018 ($20)

According to the U.S. Bureau of Labor Statistics, prices for audio equipment were 44.66% lower in 2018 versus 2009 (a $8.93 difference in value).

Between 2009 and 2018: Audio equipment experienced an average inflation rate of -6.36% per year. This rate of change indicates significant deflation. In other words, audio equipment costing $20 in the year 2009 would cost $11.07 in 2018 for an equivalent purchase. Compared to the overall inflation rate of 1.76% during this same period, inflation for audio equipment was significantly lower.

Price Inflation for Audio equipment since 2009

Consumer Price Index, U.S. Bureau of Labor Statistics
Years with the largest changes in pricing: 2018 (-13.75%), 2017 (-8.28%), and 2012 (-6.93%).

Raw Consumer Price Index data from U.S. Bureau of Labor Statistics for Audio equipment:

Year 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
CPI 48.926 47.355 45.150 42.021 39.927 38.014 36.003 34.226 31.393 27.077

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Buying power of $20 since 2009

Below are calculations of equivalent buying power for Audio equipment, over time, for $20 beginning in 2009. Each of the amounts below is equivalent in terms of what it could buy at the time:

Year USD Value Inflation Rate
2009 $20.00 -
2010 $19.36 -3.21%
2011 $18.46 -4.66%
2012 $17.18 -6.93%
2013 $16.32 -4.98%
2014 $15.54 -4.79%
2015 $14.72 -5.29%
2016 $13.99 -4.94%
2017 $12.83 -8.28%
2018 $11.07 -13.75%*
* Not final. See inflation summary for latest details.

How to calculate the inflation rate for audio equipment, 2009-2018

Start with the inflation rate formula:

CPI in 2018 / CPI in 2009 * 2009 USD value = 2018 USD value

Then plug in historical CPI values from above. The CPI for Audio equipment was 48.926 in the year 2009 and 27.077 in 2018:

27.077 / 48.926 * $20 = $11.07

Therefore, according to U.S. Bureau of Labor Statistics, $20 in 2009 has the same "purchasing power" as $11.07 in 2018 (in the CPI category of Audio equipment).


Source: U.S. Bureau of Labor Statistics began tracking the Consumer Price Index for Audio equipment in 2009. In addition to audio equipment, the index produces monthly data on changes in prices paid by urban consumers for a variety of goods and services.

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