SAPUI5 AmountFormat conversion

Hello All,

I am extending the fiori app. The amount that comes from SAP ( for.eg 6000.12 is the amount I get from SAP)

I used the formatter function: sap.ca.ui.model.format.AmountFormat.FormatAmountStandardWithCurrency(oValue,sCurrency);

where oValue = 6000.12

           sCurrency = JPY

The result of formatted value is : "JPY 6.000"

Now if I want the to get the original number  i.e 6000.12 back from formatted amount , i do not find any function.

Can anyone sugegst , how do i achieve this.?

Thanks in advance

Sheetal