This Excel download is a spreadsheet that is a real NPV calculator with interest rate and inflation rates built into it's functionality.
Do you have places you put your assets that you hope will return a profit? Is that investment really going to pay you back? Will your project, business and the like return positive value over time.
I mean, in tomorrow's dollars, will you actually have, or possess the buying, trading value that you now command? Or, will whatever you are...