how to solve this and answer please for fifo and lifo

this is about fifo and lifo chapter 8 interum accounting theory

Surt what if The following is a record of Marigold Company's transactions for Colt Products for the month of May 2017. (a) 2. Your answer is incorrect. Assuming that perpetual inventories are not maintained and that a physical count at the end of the month shows 874 units on hand, what is the cost of the ending inventory using (1) FIFO and (2) LIFO