Percentage Sign in Zoho Creator Email

Percentage Sign in Zoho Creator Email

I am trying to insert a % sign symbol into a Zoho Creator email (e.g Tax Rate: 10.5 %) where the rate is a Zoho field.

When I have tried to do this the email fails.

Here;s the code I am using:

("Tax (" + propertyinfo.Tax_Rate + "%):           $" + ((input.Tax.round(2)).toString())

If I take out the % sign it works fine.  I have also tried using the ASCI hmtl (%) with the same results.