coin of account
unit of money that does not exist as an actual coin but is used in figuring prices or other amounts of money
en-US/ˈkɔɪn ʌv əˈkaʊnt/
en-GB/ˈkɔɪn əv əˈkaʊnt/
unit of money that does not exist as an actual coin but is used in figuring prices or other amounts of money