Abgeschickt von pj am 23 Juni, 2009 um 09:30:26:
Assuming the financial year (AKA business year) would start in October, the formula is:
=IF(MONTH(WhateverDate)<10;"BY"&RIGHT(YEAR(WhateverDate)-1;2)&"/"&RIGHT(YEAR(WhateverDate);2);"BY"&RIGHT(YEAR(WhateverDate);2)&"/"&RIGHT(YEAR(WhateverDate)+1;2))
Example:
If WhateverDate would be equals "1.1.2009", the formula would result in "BY08/09". If date equals "10.10.2009", result is "BY09/10".