Reminds me of George Clason's book The Richest Man in Babylon.

THE FIRST CURE: Start thy purse to fattening "For every ten coins thou placest within thy purse take out for use but nine. Thy purse will start to fatten at once and its increasing weight will feel good in thy hand and bring satisfaction to thy soul."

This is great in theory.

What to do for financial situations where you are in debt and your outflows already more than exceed your inflows and your obligatory payments cannot be met if you save 10% of your income using the "Income - Savings = Expenses" formula?

This formula works great for some, but sadly not for all....