is it true? can someone check for me please? thank you!!

Sales Activity Units Unit Cost Price Total Beginning Inventory 100 $10 $1,000 Purchase (April 3) 50 $12 $600 Sale (April 10) 80 $30 $2400 Purchase (April 40 $560 18) Purchase (April 23) 60 $900 Sale (April 28) 120 $30 $3600 Assuming Smitty uses a periodic FIFO cost flow system, the cost of goods sold for April would be: $2,310 $750 $2,640 $2,680