Answer and Explanation:
As we know that
Total assets = Total liabilities + total stockholder equity
a. Stockholder equity s of December 31 of the current year is
$643,800 = $244,230 + total stockholder equity
So, the total stockholder equity is
= $643,800 - $244,230
= $399,570
b. Now in the case of increased, the total stockholder equity at the end of the year is
($643,800 + $83,730) = ($244,230 + $18,540) + total stockholder equity
$727,530 = $262,770 + total stockholder equity
So, the total stockholder equity is
= $727,530 - $262,770
= $464,760