2 questions I have the answer need explanation how to get it

1.)Heller Company is in the process of closing its books for the year ended December 31, 2020. During 2020, it declared $250,000 in dividends to its shareholders. Which of the following closing entries will be prepared to close the dividend account? answer is below can you explain how

Retained Earnings	$250,000
Dividends		$250,000

2. During 2020, Perino Company earned $1,575,000 in sales revenue, incurred $695,000 in cost of goods sold, $25,000 in sales discounts, $35,000 in sales returns and allowances, and $55,000 in income tax expense, what is Perino Company's net sales for 2020? the answer is $1,515,00 how can you explain