PWE trade value

I just got scammed by changing market price.
People control legendary items prices and scam new players by raising this current items price to almost a 100k . Then , they trade it for their items as if new players are profiting from this trade but they will lose almost 40% of their item price.
So make an average PWE value based on the average sales of each day in each day in the past 7 days but make each one alone.
so that we can detect if the current price is real or not . It would be better than the last 20 sales , thank you very much.

Blades of turok raised from 550k to 1.1m in a day :face_with_raised_eyebrow:

You might say it could had been manipulated but there are orders for 700k+