ASSETS ($346,000) - LIABLITIES ($266,000) = NET WORTH ($80,000)
In this case the number is positive, but the number could also be negative - even way, way negative. It doesn't matter so much what your net worth is today - you can't easily compare it to any one else. What does matter is how it moves over time. Generally speaking, you want it to keep going up over time so that you have some money to pay for groceries when you stop drawing a paycheck.
But you can't tell if it is going up or down if you don't know what it is.