This is whole question, if really not enough info, just show me some steps.. Thank You

Penguin Stock Market records the following monthly purchases and sales of an item. Assuming she has no opening stock, what is the value of her stock at the end of the period? What is the profit and profit margin if each unit sold for RM 35? (20 marks) 1(a) If the analysis of 7 units bought in November 6 bought in December 8 bought in January 11, in February 17, in March and 7 in April. How much is income, profit and profit margin. Penguin Stock Market records the following monthly purchases and sales of an item. Assuming she has no opening stock, what is the value of her stock at the end of the period? What is the profit and profit margin if each unit sold for RM 35? (20 marks) 1(a) If the analysis of 7 units bought in November 6 bought in December 8 bought in January 11, in February 17, in March and 7 in April. How much is income, profit and profit margin. 1(b) A better variation on this calculation says that all 56 units cannot be left over from November, as 110 were bought in the month and 73 were sold, so only 37 could be left. Then in December 60 were bought and 71 were sold, so only 26 of the original delivery are left. In January 70 were delivered and 49 were sold, adding 21 to stock. In February 50 were bought and 53 were sold, so we assume that three were used from January's delivery. Then in March 80 were delivered and only 37 were used, with the remainder going into stock. calculations are the cost of remaining stock, which we can find using the four conventions method. Penguin Stock Market records the following monthly purchases and sales of an item. Assuming she has no opening stock, what is the value of her stock at the end of the period? What is the profit and profit margin if each unit sold for RM 35? (20 marks) 1(a) If the analysis of 7 units bought in November 6 bought in December 8 bought in January 11, in February 17, in March and 7 in April. How much is income, profit and profit margin. Penguin Stock Market records the following monthly purchases and sales of an item. Assuming she has no opening stock, what is the value of her stock at the end of the period? What is the profit and profit margin if each unit sold for RM 35? (20 marks) 1(a) If the analysis of 7 units bought in November 6 bought in December 8 bought in January 11, in February 17, in March and 7 in April. How much is income, profit and profit margin. 1(b) A better variation on this calculation says that all 56 units cannot be left over from November, as 110 were bought in the month and 73 were sold, so only 37 could be left. Then in December 60 were bought and 71 were sold, so only 26 of the original delivery are left. In January 70 were delivered and 49 were sold, adding 21 to stock. In February 50 were bought and 53 were sold, so we assume that three were used from January's delivery. Then in March 80 were delivered and only 37 were used, with the remainder going into stock. calculations are the cost of remaining stock, which we can find using the four conventions method