You enter your income, expenses, investments, and liabilities into your favorite retirement planner. You click a button, the software does some kind of calculation, and out pops a single number.It may be 87%. Maybe it’s 72%. Or it could be 15%. Whatever the number, you’re told it represents your retirement plan’s “Chance of Success.”What exactly does that mean? How is it calculated? And what “Chance of Success” should you aim for? We’ll tackle these and other questions in this video.You'll fi...