A firm's owners' equity at the start of the year is $700,000. During the year, the firm earned $500,000 in revenue and incurred $400,000 in expenses, what would be the balance in equity at the end of the year.

$700,000 + $500,000 - $400,000 = ?

To determine the balance in equity at the end of the year, we need to consider the changes that occurred during the year.

Owners' equity is affected by two main factors: revenue and expenses.

Revenue increases owners' equity, while expenses decrease owners' equity. The difference between revenue and expenses is known as the net income.

First, let's calculate the net income:
Net Income = Revenue - Expenses

Net Income = $500,000 - $400,000
Net Income = $100,000

To determine the balance in equity at the end of the year, we need to add the net income to the beginning equity.

Balance in Equity = Beginning Equity + Net Income

Balance in Equity = $700,000 + $100,000
Balance in Equity = $800,000

Therefore, the balance in equity at the end of the year would be $800,000.