Answer:
The retained earnings should Quartz report at December 31, 2018 is $570,000
Explanation:
In this question, we apply the retained earnings equation which is shown below:
Ending retained earnings balance = Beginning retained earning balance + net income - dividend paid
= $390,000 + $220,000 - $40,000
= $570,000
The net income should be added while dividend should be deducted for finding out the ending retained earnings balance