K-1 results in double tax at 70%. Can that be right?

I'll simplify with round numbers.  I bought AGQ stock in June 2020 for $6000 and sold it 2 months later for $13000.  The transaction appears on my brokerage 1099 and results in 26% federal tax and 10% Minnesota tax which sounds reasonable.   Then I receive a K-1 for the stock,enter the data into TT, and the resulting tax essentially doubles so that I owe federal tax of 51% and MN tax of 20%, for a grand total of 70% tax.  Can this possibly be correct or does it seem like I screwed up entering data?