28. Wellington Corp. has outstanding accounts receivable totaling $1.27 million as of December 31 and sales on credit during the year of $6.4 million. There a=is also a debit balance of $3,000 in the allowance of doubtful accounts. If the company estimates that 1% of its net credit sales will be uncollectible, what will be the balance in the allowance for doubtful accounts after the year end adjustment to record bad debt expense? a. $12,700 b. $15,700 c. $61,000 d. $67.000