1 Check my work w 2 points Mr. and Mrs. Earwax own a principal residence and a vacation home that are subject to a mortgage that qualifies as acquisition debt. The principal residence and vacation home mortgages were incurred before December 15, 2017. Their filing status is married filing jointly Mortgage Average Balance Interest Paid of Mortgage Principal residence $ 39,000 $ 945,800 Vacation home 22,700 343,000 eBook References Compute Mr. and Mrs. Earwax's qualified residence interest. (Do not round intermediate calculations. Round your final answer to the nearest dollar amount.) Qualified residence interest