How is fmt:formatNumber used?

IamtheWalrus

I am trying to format a percentage to 2 decimal places and the code I am using is not working.

<form:input 
     class="calculator-percentage-input"
     value="<fmt:formatNumber value='${percentage}' maxFractionDigits='2'/>"
     path="discount" cssErrorClass="error"
/>

The value displayed in my input box is (percentage is empty):

<fmt:formatNumber value='' maxFractionDigits='2'/>

Can anyone tell me how to just display the value of 'percentage'?

IamtheWalrus

Solution:

<fmt:formatNumber var='myDiscountPercentage' value='${discountPercentage}' maxFractionDigits='2'/>

<form:input
class="calculator-percentage-input"
value="${myDiscountPercentage}"
path="discount" cssErrorClass="error"
/>