Price accepts a currency amount and attempts to interpret it based on the page's locale.
Price
A plain Price field:
<cf_terrafield name="MyPrice" datatype="price" default="1.50" />
A Price field with a range of values:
<cf_terrafield name="MyPrice2" datatype="price" min="0" max="99.99" />
The Price field with a spinedit format:
<cf_terrafield name="MyPrice3" datatype="price" format="spinedit" min="0" step="1" size="4" />