[lug] Credit - was: [Letting folks pay from the web.]

[Nate Duehr]

On 2/3/2010 1:25 PM, Jonathan Corbet wrote:
> On Wed, 03 Feb 2010 13:17:50 -0700
> Nate Duehr<nate at natetech.com>  wrote:
>
>    
>> So, mathematically, 5% of $5 has the same effect to your bottom line as
>> 5% of $100.
>>
>> What am I missing in the math?
>>      
> I can't speak to the original poster's position, but I suspect you're
> missing the fixed charges.  The discount is only part of what you pay;
> there's also the authorization charge, the capture charge, and,
> perhaps, others imposed by the net gateway.  They are fixed amounts
> (LWN pays $0.25 for an authorization, for example).  So the percentage
> gets higher as the charge amount gets smaller.
>    
Ahh, got it.  Okay.

Nate