Answer:
Debit Unearned revenue $300
Credit Revenue $300
Being entries to recognize revenue earned on completion of job.
Step-by-step explanation:
On receipt of the $1,000 in advance on May 1, the entries posted are;
Debit Cash account $1,000
Credit Unearned revenue $1,000
Being entries to recognize the amount received in advance.
On completion of work worth $300, the required entries are;
Debit Unearned revenue $300
Credit Revenue $300
Being entries to recognize revenue earned on completion of job.