Knowing the Percentage(Size) exported of a previous shoot

I am of the opinion that that although the session text records many of the settings from a previous shoot, especially the crop, I have no easy way of establishing the percentage/size of a an earlier shot. ☹️

I often go back to previous captures where I need to know the size of file exported.

Am I missing something here or is this not possible in the software?

TIA

Karl