Calculating Weighted-Average Cost Inventory Values

The Mann Corporation began operations in 2015. Information relating to the companys purchases of inventory and sales of products for 2015 and 2016 is presented below

2015
March 1	Purchase	200	units	@	$10	per unit
June 1	Sold	120	units	@	$25	per unit
September 1	Purchase	100	units	@	$14	per unit
November 1	Sold	130	units	@	$25	per unit

2016
March 1	Purchase	100	units	@	$16	per unit
June 1	Sold	80	units	@	$30	per unit
September 1	Purchase	100	units	@	$18	per unit
November 1	Sold	100	units	@	$35	per unit

Calculate the weighted-average cost of goods sold and ending inventory for 2015 and 2016 assuming use of (a) the periodic method and (b) the perpetual method.

a. Weighted-Average Periodic. Do not round your cost per unit. Do not round until your final answer. Round your answers to the nearest whole number.

2015
Cost of goods sold
Ending inventory

2016
Cost of goods sold
Ending inventory

b. Weighted-Average Perpetual. Do not round your cost per unit. Do not round until your final answer. Round your answers to the nearest whole number.

2015
Cost of goods sold
Ending inventory

2016
Cost of goods sold
Ending inventory