could someone explain this plz

Question 26 (1 point) Use the following information for the year of 2019. January 1: Beginning inventory of 50 units at $20 per unit March 5: Purchases of 30 units at $25 per unit April 15: Sales of 20 units at $30 per unit May 30: Purchases of 50 units at $15 per unit November 15: Sales of 90 units at $32 per unit December 31: Ending inventory of 20 units Calculate the cost of goods sold for the November 15 sale using the FIFO (First-in, First-out) method. For your answer, make sure to put the number without dollar signs ($), commas (,), periods (.), and decimal points. Again, please state the number only without dollar signs, commas, periods, and decimal points for your answer. For example, if the answer happens to be 12345, then you must simply put 12345