Your average weekly take home wage is $615. You take a one-week paid vacation and a second week unpaid vacation. You calculated your total annual expenses to be $31,320 per year. What is your cash surplus at the end of the year?

First, let's calculate your annual income:

Weekly take home wage: $615
Weeks worked in a year: 52 (52 weeks in a year)
Annual income: $615 * 52 = $31,980

Now, let's calculate your total expenses for the year, including the two weeks of unpaid vacation:

Total expenses: $31,320

Now, let's calculate your cash surplus at the end of the year:

Cash surplus = Annual income - Total expenses
Cash surplus = $31,980 - $31,320
Cash surplus = $660

So, your cash surplus at the end of the year is $660.