Two or more items are omitted in each of the following tabulations of income statement data. Fill in the amounts that are missing.

	2019	2020	2021
sales revenue	$291,390	?	$406,910
sales returns and allowances	(11,270)	(13,820)	?
net sales	?	348,659	?
beginning inventory	21,270	33,660	?
ending inventory	?	?	?
purchases	?	258,710	297,743
purchase returns and allowances	(5,390)	(7,760)	(9,580)
freight-in	7,770	9,250	11,580
cost of goods sold	(232,590)	?	(291,858)
gross profit on sales	47,530	89,760	102,050

*Please show your work and complete all missing places. thank you