Rupiah, I think you need to double check your math.
Between 2014 and 2018 the value of $50 + $100 notes went from 48.5 Billion to 66.5 billion and increase of 18 billion dollars in circulation.
You have a good point about inflation, but I was actually referring to the change between 2017 and 2018 since the time the announcement was made about the notes being removed as legal tenders (see below)
As you can see the number of 1000's withdrawn from 2017 to 2018 increased more than normal from the trend line in 2014 to 2017.
Of course as you have rightly identified, there is an inflation factor.
I am wondering however if the more than normal (3.4% vs 9.1%) removal of 1000's from 2017 to 2018 had any effect on the 100's and 50's because the total inflationary change actually went down from high 6% to mid 4%.
In other words if the reduction of 1000's were not replaced at the same rate then clearly the inflation related replacement would be much higher because the trend in total value in circulation has not changed much.
1000's outstanding by year and change from previous year:
2014 - 825 thousand
2015 - 794 thousand - change from 2014 - 31 thousand or 3.8% reduction
2016 - 767 thousand - change from 2015 - 27 thousand or 3.4% reduction
2017 - 741 thousand - change from 2016 - 26 thousand or 3.4% reduction
2018 - 673 thousand - change from 2017 - 68 thousand or 9.1% reduction (2.5 times as much as prior years)
Compare the above with the dollar value of total of all notes in circulation (which should give some idea of overall inflationary change)
2014 - 70 billion -
2015 - 75 billion - change from 2015 - 5 billion or 7.1%
2016 - 80 billion - change from 2016 - 5 billion or 6.7%
2017 - 86 billion - change from 2017 - 6 billion or 7.5%
2018 - 90 billion - change from 2018 - 4 billion or 4.6%
The reason for increased removal of 1000's in 2018 is likely attributable to the announcement about the change in legal tender status. I know that the branches I deal with had many 1000's coming back all of a sudden.