Purchased by me, and saw no key pricing history on it.

Purchased via SCM and the sale is listed below on imgur link (from previous owner Teal to me) with pricing (CAD), and next 3 images outline the key pricing from SCM during the 10 days available surrounding the purchase (Oct 20 - $2.75/key, Oct. 26 - $2.73/key, Oct. 30 - $2.69/key) averaging $2.72/key (CAD).

Pricing would then suggest $96.48/$2.72 = 35 keys

Sale/Key Pricing History SCM:

https://imgur.com/a/ttNxABs

History (Matching SCM sale with previous owner):

https://backpack.tf/item/10547030557