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The following is an extract of the Trial Balance as at 30 June 2020 for Parkville Ltd. Prepaid insurance Service revenue received in advance Service revenue Salaries ex - se Rent ex - nse Electrici ex .ense Additional information: 1. Supplies on hand at 30 June total $1,000. 2. An electricity bill for $300 for June has not been recorded and will not be paid until next month. 3. The balance of the prepaid insurance account is the annual premium for insurance commencing l J an 2020. 4. Services were performed during the current period in relation to $3,000 of revenue received in advance. 5. Fornightljyr salaries of $4,600 are owed at 30 June. Required: Prepare the necessary general journal entries required on 30 June 2020 to record the above additional information. No narrations required