Beginning inventory, purchases, and sales for Item Zeta9 are as follows:

Oct. 1	Inventory	90 units at $52
Oct. 7	Sale	75 Units
Oct. 15	Purchase	125 Units at $58
Oct. 24	Sale	150 units

Assuming a perpetual inventory system and using the first-in, first-out (FIFO) method, determine (a) the cost of goods sold on October 24, and (b) the inventory on October 31.