Math Formula Question - Need Ideas [message #184514] |
Sun, 05 January 2014 00:26 |
Adrienne Boswell
Messages: 25 Registered: October 2010
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Junior Member |
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I have a math question to which I can't find the answer. Here is the
scenario:
Someone goes to a store and has $100.00 worth of items. The merchant
gives the customer a 10% discount, so only $90.00 is sent to the bank.
Of the original amount, $10.00 goes to the customer for the discount,
$80.00 goes to the merchant, $10.00 goes for a processing fee. But those
amounts have to be calced on the original amount, not what the bank got.
I need a formula to find the original amount if I have the percentage
(10%) and the amount the bank got ($90.00). I know in my head that the
original amount is $100.00, but I have to do it programatically.
I know this is probably dead simple, but I just can't get my head around
it.
Thanks in advance.
--
Adrienne Boswell
Arbpen Web Site Design Services - http://www.cavalcade-of-coding.info/
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