Example of 'Hyperinflation.'

"Zimbabwe dollar estimated that it was losing value so quickly that its decline was equivalent to prices doubling in stores every 1.3 days.

The Zimbabwean government decided to fight fire with fire and printed even more money in higher denominations. Eventually, the country would produce a $100 trillion Zimbabwean dollar note — which had an exchange rate of about $30 (U.S.) in January 2009 and $5 in 2011. By 2015, it was worth just 40 cents"

https://money.howstuffworks.com/how-much-money-is-in-the-world.htm