Statement of Retained Earnings

Landon Corporation was organized on January 2, 2012, with the investment of $110,000 by each of its two stockholders. Net income for its first year of business was $89,540. Net income increased during 2013 to $132,520 and to $155,050 during 2014. Landon paid $21,000 in dividends to each of the two stockholders in each of the three years.

Prepare a statement of retained earnings for the year ended December 31, 2012.

I'd like to understand how you got the answer. I've got part of it right. I know the net income for 2012 is $145,480 and I know the Dividends paid were -40,000. I need the retained earningsJan 1st 2012 and then the Retained earnings Dec 31 2012.

Retained Earnings Jan 1 2012 ?

Net Income 2012 145,480

Dividends paid -40,000

Retained Earnings Dec 31 2012 ?