Patent ID: 7840463

Claim:
A method of using a pre-programmed calculator device to calculate future or present amounts of an amount value solely for financial planning with a pre-programmed set of input depressible switches, consisting of the steps of: providing a single housing with a pre-programmed calculator-computer having a single display screen with a series of pre-programmed input and depressible switches of a single color, the housing being adapted to be used by a single hand; first entering a first year annual amount value from a plurality of multiple sources, with a first input switch on the single display screen, the multiple sources selected from the group consisting of: annual expenses, annual investment amount, annual college cost, annual social security benefit, annual income from part-time work, annual pension amount, annual health care costs, annual mortgage expense, annual rental income and annual maintenance costs; second entering a percent of increase per year of the annual amount value with a second input switch on the single display screen, each of the plurality of the multiple sources having their own selected percent increase per year, the increase per year being selected from the group consisting of; annual rate of increase in investment amounts, increase in annual spending, increase in cost of college, increase in health care costs and expenses, increase in pension, and increase in social security; third entering the selected number of years for the annual amount value with a third input switch on the single display screen, for each annual amount value, the selected number of years being selected from a group consisting of: years of investment, years of annual spending, years of college, years of health care costs and expenses, years of pension, and years of social security; fourth entering the rate of return of the annual amount value with a fourth input switch on the single display screen; and calculating another amount value, the another amount value being a present amount of the amount value or a future amount of the amount value, the present amount being amounts that would need to be invested to generate a selected stream of income based on the values entered with the first input switch, the second input switch, the third input switch and the fourth input switch, the calculating being done with a fifth input switch on the single display screen, wherein the method is used for calculating financial planning results solely by entering data with the first, the second, the third, the fourth and the fifth input depressible switches of the pre programmed device, so that the method steps are solely used with the single display in the housing without additional resources to provide financial planning data for a user over multiple years.