The withdrawal of a country's lowest-denomination coins from circulation (usually a one-cent coin or equivalent) may either be through a decision to remove the coins from circulation, or simply through ceasing minting. This usually occurs after inflation or increased production costs for the coin. The coin being removed usually has a poor seigniorage, which means the coin costs as much if not more to produce than it is worth at face value.
A penny is a coin (pl.: pennies) or a unit of currency (pl.: pence) in various countries. Borrowed from the Carolingian denarius (hence its former abbreviation d.), it is usually the smallest denomination within a currency system. At present, it is the formal name of the British penny (abbr. p) and the de facto name of the American one-cent coin (abbr. ¢).
Penny is also the informal name of the cent unit of account in Canada, although the Canadian penny's production ended in 2012 and it was withdrawn from circulation in 2013.
The krone (Danish: [ˈkʰʁoːnə]; plural: kroner; sign: kr.; code: DKK) is the official currency of Denmark, Greenland, and the Faroe Islands, introduced on 1 January 1875. Both the ISO code "DKK" and currency sign "kr." are in common use; the former precedes the value, the latter in some contexts follows it. The currency is sometimes referred to as the Danish crown in English, since krone literally means crown. Krone coins have been minted in Denmark since the 17th century.
One krone is subdivided into 100 øre (Danish pronunciation: [ˈøːɐ]; singular and plural), the name øre is probably derived from the Latin word for gold. Altogether there are ten denominations of the krone, with the smallest being the 50 øre coin (one half of a krone). Formerly there were more øre coins, but those were discontinued due to inflation.
Cash rounding or Swedish rounding (New Zealand English) occurs when the minimum unit of account is smaller than the lowest physical denomination of currency. The amount payable for a cash transaction is rounded to the nearest multiple of the minimum currency unit available, whereas transactions paid in other ways are not rounded (for example electronic funds transfer such as with payment cards, or negotiable instruments such as cheques). Cash rounding typically occurs when low-denomination coins are removed from circulation owing to inflation. Cash rounding may be a compulsory legal requirement if such coins are no longer legal tender, or a voluntary practice where they remain in circulation but are scarce or impractical.
Cash rounding (Swedish: öresavrundning, lit. 'öre rounding') was introduced in Sweden in 1972 when 1 and 2 öre coins were withdrawn from circulation, and has continued to be applied at incremental levels as smaller denomination coins have been withdrawn. The current level of cash rounding in Sweden is to the closest whole krona, after the 50 öre coin was withdrawn in 2010. The Reserve Bank of New Zealand used the name "Swedish rounding" in 1990 when withdrawing their 1- and 2-cent coins. In Canada, cash rounding to the nearest nickel (5 cents) due to the elimination of the penny in 2013 is also called penny rounding.