Need help please

Cant figure out Sept 25 and Nov 7

Simplex Compary has a fiscal yoar end on December 31. The compary has only one proctuct in inventory, and all units of that product are identical (hariogenous). The opening balance unit price is $17 per unit Complete the following schedule to caloulate the value of ending inventory using the weighted-average cost method under the perpefual invontory system Then calculate the cost of quods sold for the year 2019. Denoterter dellar eigns or commas in the input boxes