Answer: Please refer to Explanation
Step-by-step explanation:
The following will be the journal entry on October 2nd
October 2
DR Cash $8,400
CR Treasury Stock $8,000
CR Additional Paid-in Capital $400
(To record reissuance of Treasury Stock)
Workings
Cash = 400 * 21
= $8,400
Treasury Stock = 400 * 20 (purchase price)
= $8,000
Additional Paid-in Capital = (21 - 20) * 400
= $400