If you want to be honest and not have Kela pay for your test (or you need the certificate without Finnish authentication) PR2You offers PCR tests in Jätkäsaari for 120€, and Testaakorona in Vantaa for 100€. So it's kinda obvious that Avaa, 9Lives, Terveystalo and the likes are just gouging the clueless customers. Don't tell me the Tapiontori parking lot is so expensive to rent that 9Lives needs to charge 194€...

Finnair, though, I am willing to believe that 65€ is about what they expect the test to cost them overall.