The amount of stockholders' equity at the end of the year is $585,000.
The accounting equation is also known as the balance sheet equation. It relates the assets of a business to its liabilities and stockholders' equity. According to the accounting equation: Assets = stockholders' equity + liabilities
Stockholders' equity = assets - liabilities
Stockholders' equity = ($520,000 + $200,000) - ($210,000 - $75,000)
Stockholders' equity = $720,000 - $135,000
Stockholders' equity = $585,000
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