Regardless of how you do this calculation (even if you do it longhand), you are using an equation:

Next Forecast = Old Forecast + Change in Old Forecast

=Old Forecast + (Projected Percentage Changes xOld Forecast)

or:

NEXT = OLD + ((A% + B% + C%) ⎟ 100 x OLD)

Using the SOLVE and ALPHAbetic menus, you can type in this equation as



and then automatically create this menu—which contains all the variables’ labels—by pressing I :*

Each menu label represents a variable. You can use them to store and calculate values the same way you use other menus and their built-in variables.

Entering a Solver Equation. To type this equation, you must use the ALPHA menu. If you are not familiar with the ALPHAbetic menu, refer to “ Typing Words and Characters ” on page 30.

Keys:

Display:

Description:

 

 

Displays SOLVE menu,

 

 

 

 

 



then ALPHA menu.

NEXT =OLD

The equation is too long

*Because the Solver uses arithmetic priority (,  before , ), a second set of parentheses (before A% and after the second OLD) is not necessary. See “Order of Calculations,” page 165.

154 12: The Equation Solver

File name : English-M02-1-040308(Print).doc Print data : 2004/3/9