Just needs 2 sold prices right?

http://www.tf2outpost.com/trade/14367866 - Sold for a Burning Bonk Helm 5.4-6.2 buds

Taking unusual overpay into account, the price of the Bonk Helm would be 5.4 buds.

(Taking into account original values) Bonk Helm = 4 - 4.6 buds

http://i.imgur.com/CW1Dygv.png

http://i.imgur.com/gL3gjBo.png

http://i.imgur.com/eeBD0sG.png

I sold mine a while back for a Misty Skull Master's Yellow Belt 5.8 - 6.9 buds

(Taking into account original values) Misty Skull Master's Yellow Belt = 5 - 6 buds

Along with adding 18 keys, 2.44 and a Strange Amputator, with some random free backgrounds and booster packs thrown in. ( 1.4 buds )

So I sold mine for 3.6 - 4.6 buds

And this how I got my low and high ends of the range. Pardon me if I make any mistake, will correct and resuggest.

Low end: 3.6 ( Master's Yellow Belt )

High End: 4 ( Overpay for Burning Bonk Helm )

Yeah this taking into account original values rule really makes no sense to me whatsoever. But somehow it's being enforced, so when buds go back up, if they ever do, this whole unusual system has to be completely overhauled again.