Inspiring U is a motivational consulting business. At the end of its accounting period, December 31, 20Y2, Inspiring U has assets of $690,000 and liabilities of $375,000. Using the accounting equation, determine the following amounts:

a. Stockholders' equity as of December 31, 20Y2.

b. Stockholders equity as of December 31, 20Y3, assuming that assets increased by $80,000 and liabilities increased by $51,500 during 20Y3.