Format mask a currency amount in Oracle ApEx

I have a cost field in my Oracle ApEx form where the user may enter an $ amount of say 10000.00 or more or even less.

My question is, how to format mask and validate this val开发者_C百科ue within my ApEx form?

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Don't you just need the settings of the item? For example, when you create or edit an item of type number field, you can set the following (Edit Page Item):