please!!!!!!

Activity Units Unit Cost Sales Price Total Beginning Inventory 100 $10 $1,000 Purchase (April 3) 50 $12 $600 Sale (April 10) 80 $30 $2400 Purchase (April 18) 40 $14 $560 Purchase (April 23) 60 $15 $900 Sale (April 28) 120 $30 $3600 Assuming Smitty uses a periodic LIFO cost flow system, the cost of goods sold for April would be: $2,560 $750 $500 $2,310