For those wondering why the range.

Steam Community Market Sales

For each SCM sale, please provide proof (screenshot) that the hat of that particular effect sold for the said price

To determine a trade value, you should take in consideration BOTH what a buyer paid and what the seller sold (i.e. you will get a range from a single sale. low end = what the seller received; high end = what the buyer paid)

Buyer value: If the hat is >1 buds in value, take the sale value divided by the value of buds AT THE TIME. If the hat is <1 buds in value, take the sale value divided by the value of keys AT THE TIME.

Seller value: First factor in steam tax. Divide the sale value by 1.15. Then divide the result by the value of buds or keys at the time of the sale as appropriate.

So the calculation will be as follow:

Buds range on the 27th of December : 35.65 - 39.89 dollars. Taking 37.77 dollars as the price

Buyer's value: 180/37.77 = 4.8 buds

Seller's value: 180/1.15 = 156.6. 156.5/37.77 = ~4.1 buds.

A range of 4.1-4.8 buds should be your suggested price.