need the calculations for fifo and inventory. locked in and cant access siteors

b) A Wallace Bishop store began the month of September 2019 holding 20 bracelets that cost $60 each. During September, the store subsequently purchased the following amount of inventory (bracelets); September No. of bracelets Cost per bracelet $65 $70 $85 On 7 September the store sold 21 bracelets for $100 each and on the 17 September the store sold a further 7 bracelets for $120 each. Calculate: 1) the cost of goods sold based on perpetual inventory and FIFO cost allocation. (2 marks) 2) the closing inventory based on periodic inventory and weighted average cost allocation