MGZ. sоld $300,000 оf “Field Hоckey Digest" subscriptions on August 1, 2023 аnd recorded the full аmount аs “Unearned Revenue.” The subscriptions are for 12 monthly issues. At December 31, 2023, MGZ. had mailed 5 issues of the magazine. What will the adjusting entry need to include with regard to this information?