ECW Actual Compression Ratio

This is a follow on from my previous idea C658999. The latest version works well and outputs the target compression ratio used for my ECW files but the "Actual Compression Ratio" attribute is not working / does not seem to have been fixed. I am struggling to calculate the ratio myself. I have the correct formula, but I can't combine all of the necessary attributes (particularly file size) to perform the calculation. I can use some transformers to generate the file size but it takes hours if I have geometry attached, but I need the geometry for other things. I also can't subtract the header information to get a more accurate compression value. Can you please update the ECW reader to include / fix the Actual Compression Ratio. Thanks.