The following information was provided by Smart Mobiles for the year ended 31 July 2023. Smart Mobiles rents a small kiosk in the mall where Ringo Smart, the owner sells mobile phones to the general public. Smart Mobiles uses the periodic inventory method to keep records of trading inventory transactions. The following information was provided; Extracted from the post-adjustment trial balance at 31 July 2023 Inventory at 1 August 2022 Sales Carriage on sales Purchases Purchases returns Customs duty Inventory on hand at 31 July 2019 R 50 000 555 000 10 000 408 000 45 000 A- 11 000 91 000 Required: Calculate the gross profit percentage on sales for the year ended 31 July 2023