Budget is just the magnifying glass that magnifies your values. A good margin would ten per cent. Another good business is thru selling herbs. Use your time for how it's really real value.
When my parents were young a million dollars was the phrase wealth. Today their home may be valued at at least that but are usually far from rich. They are superior to off than many others who own valuable property. There are pensioners trying to survive on a pension who own property now worth a million, or a lot. Try telling them they are rich. Th