XML : SoapUI Assertions Failing to Detect Decimal

I am attempting to validate an XML response in SoapUI.

The response field in question looks exactly like this:

  <amount>5225.00</amount>    

I created an assertion to verify the amount as 5225.00 but am getting the error:

  "Expecting [5225.00], actual was [5225]"    

Because the amount field is supposed to return a dollar amount I do want to verify cents are included even when 0. The response is returning "5225.00". Why is SoapUI not correctly identifying this?