Pattern
Specifies a presentation format that is based on patterns. The pattern format overrides formats specified in other properties. For example, to format the date as 2009/12/31 23:59:59 PM, use the pattern yyyy/MM/dd hh:mm:ss aa. For example, to format thousands using the letter K, set the Format Type to Number, set the Scale to -3 (to remove 000), and then use the pattern to ####K.