Presented below is information from Shamrock Computers Incorporated. July 1 10 10 17 Sold $20,400 of computers to Robertson Company with terms 3/15, n/60. Shamrock uses the gross method to record cash discounts. Shamrock estimates allowances of $1,326 will be honored on these sales. Shamrock received payment from Robertson for the full amount owed from the July transactions. Sold $204,000 in computers and peripherals to The Clark Store with terms of 2/10, n/30. 30 The Clark Store paid Shamrock for its purchase of July 17. Prepare the necessary journal entries for Shamrock Computers. (If no entry is required, select "No Entry" for the account titles and enter O for the amounts. Credit account titles are automatically indented when the amount is entered. Do not indent manually.) Date Account Titles and Explanation (To record sales revenue.) (To record allowance for sales returns.) Debit Credit