A company's inventory records indicate the following data for the month of January: Jan. 1 Beginning 180 units at $9 each Jan. 5 Purchased 170 units at $10 each Jan. 9 Sold 300 units at $35 each Jan. 14 Purchased 200 units at $11 each Jan. 20 Sold 150 units at $35 each Jan. 30 Purchased 230 units at $12 each What is the amount of cost of goods sold for January, if the company uses the LIFO, FIFO and weighted average perpetual inventory system?

The amount of cost of goods sold for January:

                                     LIFO          FIFO      Weighted Average

Cost of goods sold    $4,520     $4,420       $4,452

Explanation:

a) Data and Calculations:

Date     Description    Units          Unit Cost/Price Total Cost Total Revenue

Jan. 1    Beginning       180 units at $9 each           $1,620

Jan. 5   Purchased      170 units at $10 each            1,700

Jan. 9   Sold              (300) units at $35 each                             $10,500      

Jan. 14  Purchased    200 units at $11 each            2,200

Jan. 20 Sold              (150) units at $35 each                                5,250

Jan. 30 Purchased    230 units at $12 each           2,760

Total                    780 / 450                                   $8,280         $15,750

b) Cost of goods sold:

LIFO:

Jan. 9   Sold  (300) 170 units at $10 = $1,700

                               130 units at $9 =      1,170

Jan. 20 Sold  (150) 150 units at $11 =    1,650

Cost of goods sold =                          $4,520

c) FIFO:

Jan. 9   Sold  (300) 180 units at $9 = $1,620

                               120 units at $10 =  1,200

Jan. 20 Sold  (150) 50 units at $10 =     500

                              100 units at $11 =    1,100

Cost of goods sold =                        $4,420

d) Weighted-Average:

Jan. 9   Sold  (300) 300 units at $9.49 = $2,847

Jan. 20 Sold  (150) 150 units at $10.70 =    1,605

Cost of goods sold =                                $4,452

Weighted Average Cost at each point of sale:

$9.49 = ($1,620 + $1,700)/350 units

$10.70 = (($9.49*50) + $2,200)/250 units

e) LIFO = Last In, First Out is based on the assumption that the items sold are from the last inventory purchased instead of the first.

FIFO = First In, First Out is based on the assumption that the items sold are from the first inventory instead of the last.

Weighted-Average: This method averages the cost of inventory to determine the unit cost.

Under the perpetual inventory system, the inventory costs are recorded immediately after an inventory transaction and not at the end of a period.

sound is invisible, but sometimes we can feel it. when a kettle-drum is thumped with a stick that time the tight drum skin moving up and down very quickly for some time and then it pumped sound waves into the air. loudspeakers also work in a similar manner.

components of a speaker:

electromagnet

in order to translate an electrical signal into an audible sound, an electromagnet is used in looudspeakers

  suspension

suspension is used to   center the voice coil in the gap of the magnet and it exerts a restoring force to keep it there. suspension is used to limits the maximum mechanical excursion of the diaphragm and voice coil.

voice coil

voice coil is a coil of wire which is attached to the apex of a loudspeaker cone. it provides the motive force to the cone by the reaction of a magnetic field to the current passing through it.

cone

in a   loudspeaker, a   thin, semi-rigid membrane attached to the voice coil, which moves in a magnetic gap due to which it vibrates   and produced sound. it is known as diaphragm and it can also be called a cone, though not all speaker diaphragms are cone-shaped.

surround

surround is also known as front suspension. surround is used to join the cone to the chassis. together with the suspension it controls the cone excursion, and it is also used to   determine how energy which is   travelling through the cone is absorbed, and how the speaker limits when it reaches the ends of its travel.

dustcap

dustcap is used to protect the voice coil from dust and dirt. it is a part of the cone.

how speaker work

the outer part of the cone is fastened to the outer part of the loudspeaker's circular metal rim. the inner part is fixed to   voice coil that sits just in front of a permanent magnet . when loudspeaker is hooked up to a stereo, electrical signals feed through the speaker cables into the coil. it will convert the coil into an electromagnet magnet . when electricity flows back and forth in the cables, the electromagnet either repels or attract the permanent magnet. this moves the coil back and forth, and it pull and push the loudspeaker cone. like a drum skin vibrating back and forth, the moving cone pumps sounds out into the air.in this way loudspeakers works.

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explanation:

we're are the selections to pick from?