(12C Platinum) Successive Discounts
12-23-2018, 09:33 AM (This post was last modified: 12-23-2018 09:35 AM by Dieter.)
Post: #4
 Dieter Senior Member Posts: 2,397 Joined: Dec 2013
RE: (12C Platinum) Successive Discounts
(12-23-2018 09:11 AM)Werner Wrote:  (1 + i%/100)*(1+j%/100) = 1 + (i%+j%+i%*j%/100)/100

So,
In:
Y: i%
X: j%
Out
X: i%+j%+i%*j%/100

Yes, that's the term in square brackets in Gamo's formula.
Except the sign which has to be negative here – we are calculating discounts.

Using your suggestion, the complete program can be as short as this:

Code:
01 % 02 CHS 03 LstX 04 + 05 + 06 % 07 -

1000 [ENTER] 5 [ENTER] 10
[R/S] => 855,00  (discounted price)
[Δ%] => –14,50  (total discount in %)

But it still works only for two discount rates.

Dieter
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 Messages In This Thread (12C Platinum) Successive Discounts - Gamo - 12-22-2018, 05:07 AM RE: (12C Platinum) Successive Discounts - Dieter - 12-22-2018, 09:07 AM RE: (12C Platinum) Successive Discounts - Werner - 12-23-2018, 09:11 AM RE: (12C Platinum) Successive Discounts - Dieter - 12-23-2018 09:33 AM RE: (12C Platinum) Successive Discounts - Gamo - 12-23-2018, 03:05 PM RE: (12C Platinum) Successive Discounts - SlideRule - 12-23-2018, 03:13 PM RE: (12C Platinum) Successive Discounts - Dieter - 12-23-2018, 06:16 PM RE: (12C Platinum) Successive Discounts - SlideRule - 12-23-2018, 07:45 PM RE: (12C Platinum) Successive Discounts - Gamo - 12-24-2018, 06:32 AM RE: (12C Platinum) Successive Discounts - Thomas Klemm - 12-24-2018, 11:25 AM RE: (12C Platinum) Successive Discounts - Albert Chan - 12-24-2018, 12:52 PM

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