USE HP CALC "AUTOMATIC CONSTANT" FEATURE TO FIGURE DISCOUNTS

Let's say you go into a store with a 25% off sale. What that means is that you will pay 75% of the original price (original price .75 = discounted price). Use HP CALC to figure out the price of the first item (say its list price is 125.00).

Go into HP CALC, key in 125.00 and press (ESC) (*) (*) (the times key twice). Then enter .75 and press (=). The result, 93.75, appears at the bottom right of the screen along with [*0.75].

HP Calc's Arithmetic Screen:  Graphic

 What has happened is that when you pressed (*) the second time, you told the 95LX to use the next number as the automatic constant.

The 95LX automatically multiplies future entries by this number. For example, to calculate the discounted price of the next 25% off item, key in the regular price and press (=).

You can create automatic constants for +, -, , /, or ^ (raising a number to a power). For more on using the automatic constant in calculations, see page 23-6 of HP 95LX User's Guide.