Rp100 in 2008
Rp172.68 in 2018
The inflation rate in Indonesia between 2008 and today has been 72.68%, which translates into a total increase of Rp72.68. This means that 100 ruphias in 2008 are equivalent to 172.68 ruphias in 2018. In other words, the purchasing power of Rp100 in 2008 equals Rp172.68 today. The average annual inflation rate has been 5.09%.
The following chart ilustrates the equivalence of Rp100 throughout the years due to inflation and CPI changes. All values are equivalent in terms of purchashing power, which means that for each year the same goods or services could be bought with the indicated amount of money.
All calculations are performed in the local currency (IDR) and using 6 decimal digits. Results show only up to 2 decimal digits to favour readability. Inflation data is provided by governments and international institutions on a monthly basis. Today's values were obtained by estimating figures from recent trends.
The following table contains relevant indicators:
|Total Inflation (2008-2018)||68.92%|
|Annual inflation avg. (2008-2018)||5.38%|
|Annual inflation avg.*||5.09%|
|Rp1 in 2008||Rp1.69 in 2018|
* Values extrapolated from the last official data to obtain today's values.
There are several ways to calculate the time value of money. Depending on the data available, results can be obtained by using the compound interest formula or the Consumer Price Index (CPI) formula.
Given that money changes in time as a result of an inflation rate that acts as a compound interest, the following formula can be used: FV = PV (1 + i)n, where:
In this case, the future value represents the final amount obtained after applying the inflation rate to our initial value. In other words, it indicates how much are Rp100 worth today. There are 10 years between 2008 and 2018 and the average inflation rate has been 5.0912%. Therefore, we can resolve the formula like this:
FV = PV (1 + i)n = Rp100 * (1 + 0.05)10 = Rp168.92
When the CPI for both start and end years is known, the following formula can be used:
In this case, the CPI in 2008 was 64.54 and the CPI today is 111.44. Therefore,
|Initial Value||Equivalent value|
|Rp1 ruphia in 2008||Rp1.73 ruphias today|
|Rp5 ruphias in 2008||Rp8.63 ruphias today|
|Rp10 ruphias in 2008||Rp17.27 ruphias today|
|Rp50 ruphias in 2008||Rp86.34 ruphias today|
|Rp100 ruphias in 2008||Rp172.68 ruphias today|
|Rp500 ruphias in 2008||Rp863.38 ruphias today|
|Rp1,000 ruphias in 2008||Rp1,726.75 ruphias today|
|Rp5,000 ruphias in 2008||Rp8,633.76 ruphias today|
|Rp10,000 ruphias in 2008||Rp17,267.52 ruphias today|
|Rp50,000 ruphias in 2008||Rp86,337.59 ruphias today|
|Rp100,000 ruphias in 2008||Rp172,675.17 ruphias today|
|Rp500,000 ruphias in 2008||Rp863,375.85 ruphias today|
|Rp1,000,000 ruphias in 2008||Rp1,726,751.71 ruphias today|
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