On July 1, 2018, the Foster Company sold inventory to the Slate Corporation for $300,000. Terms of the sale called for a down payment of $75,000 and three annual installments of $75,000 due on each July 1, beginning July 1, 2019. Each installment also will include interest on the unpaid balance applying an appropriate interest rate. The inventory cost Foster $120,000. The company uses the perpetual inventory system.

Required:

1. Prepare the necessary journal entries for 2018 and 2019 assuming revenue recognition upon delivery. Ignore interest charges.

2. Repeat requirement 1 applying the installment sales method.

3. Repeat requirement 1 applying the cost recovery method.