Please solve this question General accounting and step by step explanation

Lakeside Co. has outstanding accounts receivable of $450,000 as of December 31 and sales on credit during the year of $1,200,000. There is also a debit balance of $5,000 in the allowance for doubtful accounts. If the company estimates that 3% of its outstanding receivables will be uncollectible, what will the balance be in the allowance for doubtful accounts after the year-end adjustment to record bad debt expense