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Pearso SESC Fin. Ace Dave Ryan is the CEO of Ryan's Arcade. At the end of its accounting period, December 31, Ryan's Arcade has assets of $627,660 and liabilities of $229,330. Using the accounting equation, determine the following amounts: a. Stockholders' equity as of December 31 of the current year. b. Stockholders' equity as of December 31 at the end of the next year, assuming that assets increased by $78,580 and liabilities increased by $17,050 during the year