Sack of Gems - what's behind the crazy price peaks?

I think people take it as an average instead of a median and where the confusion comes in.The prices displayed are an average just a different kind of average.

Most seem to see it as the normal average of total sales divided by sold and that gives you the average selling price.Steam seems to use a median to get an average price.

Example..and does not reflect actual market stats

sale price ranged from one 1.00 to 2.50 with a median of 2.00 which 2.00 would be the median average of what most people paid for said item.
Or say you sold 1,000 random items in a box and the most someone paid was 10 dollars and the lowest was 1.00 but most paid 5.00 then your median would be based 5.00 because most bought it at that.To get a non median average you would have to divide sales vs number sold to get average you made off each item vs what the average person paid.

Steam is showing the price of what most people paid instead sales divided by price.I think it would be hard to have a real average of sales vs price paid because it changes all the time along with the price sold.So it far easier to give median average most people paid for said item.

At least that is the way i take it and is still an average but not an average of over all sales divided by number of sales to get average price.

Though in this case i think the price hike has more to do with mobile thing and supply slowly dwindling vs someone putting in a wrong price.