How to convert this data to a string

I have a WebRequest.Entity string that loos like this:

ordertext=%3C%3Fxml%20version%3D%221.0%22%3F%3E%3CReport%20version%3D%220.9%22%3E%3

It would appear that this needs some decoding that there are actually two characters after each % that form an 8 bit hex number for a character…
Typical web… Right?

How do I convert this to a the actual string?

its url encoded
urldecoder

see
documentation.xojo.com/api/text/encoding_text/decodeurlcomponent.html