5 Maira opened a shop on 1 January 2020. She provided the following trading information. Gross margin: 40% Purchase price: $70 per unit Carriage inwards: $2 per unit Inventory: 130 units at 31 December 2020 REQUIRED (a) Calculate the cost of Maira's inventory at 31 December 2020. [2] Maira has not kept a full set of accounting records, but provided the following information. 1 All sales were made on cash terms. The sales for the first year were: for the first two months: $10800 each month for the next eight months: $12000 each month for the last two months: $16200 each month 2 During the year Maira purchased 1400 units. Carriage was paid on these units. 3 Maira took goods from the business during the year ended 31 December 2020. No record was kept of these drawings.