Dana Corp. owns stock in Seco Corp. For Dana and Seco to qualify for the filing of consolidated returns, at least what percentage of Seco's total voting power and total value of stock must be directly owned by Dana?

The answer is: At least 80%

Explanation:

If corporations want to file consolidated tax returns they must be part of an affiliated group. They will be part of the same affiliated group if at least 80% of the voting power and stock value of each is owned by a mutual "parent corporation" and by each other corporation of the affiliated group.

In this case, Dana Corp. must own 80% the stocks and voting power of Seco Corp.