I'm also struggling with a lack of "cost basis factor" on my 1099. I'm trying to use the framework of Wealthfront's calculator from last year (since they aren't putting one out this year), but the Wealthfront 1099 does not provide a "cost basis factor" and I have been unable to figure out how they got those values last year when comparing the 2021 Grayscale tax document to the 2021 Wealthfront calculator. And I have many sales to address for 2022 since I mostly got out of GBTC in 2022 due to last year's tax headache!!
Is there a formula I am missing to determine what the "cost basis factor" is for each bolded line on the Grayscale 2022 gross proceeds file?
