Basic rules for getting rich

In achieving wealth, how you invest isn't nearly as important as how much you save.

Say you're 40, have $200,000 saved, with 60% in stocks, and are putting away 10% of a $100,000 salary (including company match). You have a 52% chance of retiring with 70% of your pre-retirement income, according to T. Rowe Price.

Boost your stock stake to 80%, and your chances improve modestly, to 57%. But if you boost your savings to 15% instead, you get to 69%.

Message: Stretch to save the most you can.