Solution:
Given,
The sums of consumer cash earned during the year ending December 31, 2019 were $314,000 and accounts receivable were lowered by $42,000.
Sales on account for the year ended December 31, 2019 :
Credit sales = Cash collected + Increase / ( Decrease ) of accounts receivable
Credit sales = $ 314,000 - $ 42,000
Credit sales = $ 272,000