Inland Revenue Staff Federation was created in 1936.
Inland Revenue Staff Federation ended in 1996.
No official maths classes are needed for an owner of a shop. Obviously, they must be able to calculate money into and out of the shop's till. Be able to pay staff wages, suppliers invoices, etc. They must be able to keep records for Inland Revenue and Tax purposes - though an accountant could be used to deal with revenue and taxes such as VAT, etc.
The Staff of Karnath was created in 1984.
Angel Staff was created in 2005.
Hogwarts staff was created in 1997.
Jack Staff was created in 2000.
The Alabaster Staff was created in 2003-07.
The Grand Staff
Diageo Staff Association was created in 1965.
Staff Infection was created on 2004-03-14.
Special Staff F was created in 1941.
Britannia Staff Union was created in 1972.