Rates of inflation of several hundred percent per month are often seen. Extreme examples include:
Germany in 1923 when the rate of inflation hit 3.25 106 percent per month (prices double every 49 hours)
Greece during its occupation by German troops (1941-1944) with 8.55 109 percent per month (prices double every 28 hours).
The most severe known incident of inflation was in Hungary after the end of World War II at 4.19 1016 percent per month (prices double every 15 hours).
More recently, Yugoslavia suffered 5 1015 percent inflation per month (prices double every 16 hours) between 1 October 1993 and 24 January 1994.