I asked below question earlier. It is periodic inventory not perpetual. Thanks

Inventory balance 500 units $10.00 Purchase, April 11 -800 units $8.00 Purchase, June 1-700 units $12.00 Sale May 1 (sold at $38.00 per unit) 500 units Sale July 3 (sold at $38.00 per unit) 520 units Operating expense (excluding income tax expense) $19,009 FIFO, LIFO and weight average Is 500 times 38 units ? Calculate number of goods avail and CSG Ending inventory FIFO, LIFO and weighted average Income statement