Arnold Company's raw material purchases during January, its first month of operations, were as follows:

The inventory on January 31 was 3,500 pounds. Compute the cost of the inventory on January 31 and the cost of raw materials issued to production for January under each of the following cost flow assumptions:

FIFO.

Weighted average.

LIFO.

For weighted average: In your computations, round the per-unit cost to four decimal places. For all methods, round your final answers to the nearest dollar.