How is sell price determined?

[__Crunchy]

for example, if i can buy a hat for 4.88 ref, and sell it for 3.77 ref, then what correlation is there between the two different prices? is it percentage based, or is it set custom for everything, or something else? i want to know mainly because i want to figure out how much spec ks kits sell for compared to their price, before i craft one.

[AMisinformedLemming]

Hey dude check out my heat graph 

 

[AMisinformedLemming]

Specialized kits sold at no-min auctions usually go for atleast 45 refined and often go for about 55 refined at final bid.