Proof #1

http://www.tf2outpost.com/trade/24054848 Sold for Max's severed head And Steaming Demoman's Fro

3.3 + 1.4 * 0.9 = 1.2~

[ i did find that fro sold with KaW pampered pyro(0.9) for Steaming Professor's Peculiarity(2.4) ~ 2.3 - 0.9 = 1.4 fro ~ 1.4 part of trade ]

Total: ~4.5 buds (OUTLIER) ppl asking 3-4

CYKA BLYAT sold his DaD ketche for 2.8 buds pure

Total: ~ 2.8

Proof #2

http://www.tf2outpost.com/trade/24054139 Sold for Orbiting fire brown bomber

Total: ~2.65 buds

2.65*0.9 = 2.385 ~ 2.4 after overpay

Hope this is fair enought, tried my best :)