Script to analyse value of previous trade

Hi,

last week, I was wondering what is the difference between the value of card I sent and received, based on the actual value of the cards.
Thanks to Deckbox, cards on the trade page are shown with their actual value (not the value when the trade was).

So I made a little script to go through my previous trades to see what is the value of cards I sent vs I received.
Here is the result:

The script is available here: https://github.com/T0RAT0RA/deckbox_trades_value

Is this something you would use?