Zana company purchased cosmetic accesories to be sold later, the inventory at the beginning peroid balance was purchasing of 200 units of make up powder with 10 dollar for each at the beginning of the month, in 2 of october she bought another 300 powder for 11 dollar each, 3 october she sold 200 units of the powders, in 7 of october she purchased 200 units for 12 dollar each, 9 of october she sold 100 units of powders. Calculate the cost of selling by the following methods: Fifo method Lifo method Weighted average method