XML Tutorial/XML Schema/scale

To specify the number of digits to the right of the decimal point:

<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  targetNamespace="http://www.wbex.ru" xmlns="http://www.wbex.ru"
  elementFormDefault="qualified">

  <xsd:element name="numbers">
    <xsd:simpleType>
      <xsd:restriction base="xsd:decimal">
        <xsd:precision value="5" />
        <xsd:scale value="2" />
      </xsd:restriction>
    </xsd:simpleType>
  </xsd:element>
</xsd:schema>
 
File: Data.xml
<?xml version="1.0"?>
<numbers xmlns="http://www.wbex.ru">34.5</numbers>