Final answer:
The correct entry includes a debit to Treasury Stock for $81,600, which is the cost of the shares, and a credit to Paid-In Capital from Treasury Stock for $40,800, which is the excess of the sale price over the cost of the treasury shares.
Step-by-step explanation:
The entry to record the sale of 6800 shares of treasury stock by Concord, Inc., which were previously acquired at $12 per share and sold at $18 per share, would include: a debit to Treasury Stock for $81,600 and a credit to Paid-In Capital from Treasury Stock for $40,800. The treasury stock is debited for the cost of shares which is 6800 shares * $12 = $81,600, and the excess of sale price over cost is credited to the Paid-In Capital from Treasury Stock which is (6800 shares * $18) - $81,600 = $40,800.