On Tue, Aug 09, 2016 at 09:56:30AM -0600, Michael Siepmann wrote: > On 08/09/2016 08:09 AM, Aaron Wolf wrote: > > > On 08/09/2016 06:31 AM, Stephen Michel wrote: > >> On August 9, 2016 8:59:16 AM EDT, Bryan Richter wrote: > >>> <snip> > >>> I suggest we specify it as a maximum fee percentage, however, to > >>> help adapt to future fee differences. That being the case, I > >>> propose we choose 15% as the maximum fee percentage (plus or > >>> minus some tenths of a percent). > >> A % fee max, rounded to the nearest pretty dollar amount, seems > >> like the way to go to me. 15% / $2 seems reasonable to me. > >> > > I agree that 15% fee is the maximum fee, seems sensible enough, > > and that makes it processor-neutral. I don't agree with Stephen's > > idea of rounding to nearest dollar, that's far too low resolution. > > I think just rounding to nearest cent is fine. > > > 15% seems high to me.
There are three things being discussed here, so I want to provide space to think about them separately. First, which I think we all agree about: the fee percentage should be calculated against the total charge, and not against the crowdmatch subtotal. (Michael, I provided both ratios for comparison, but "fee/total" was the one I was referring to with my proposed 15%. Sorry I didn't make that clear.) Second, what should that percentage be? I have no strong opinion. We have +3 for 15% and +1 for 10%, but 15% is benefiting from the primacy principle. Are there any other votes, or changes of heart? Finally, how is the minimum sensible pledge displayed: as a dollar amount, or as a ratio? I think it's clear that the amount should be *calculated* as a ratio, but I'm not certain that *displaying* it as a ratio is best. But I don't actually know. Any opinions here? I'm personally partial to dollar amounts because it provides an (algorithmic) level of indirection. If we say we charge <=10%, and then Stripe changes its fees faster than we can adapt, we'd be lying. But if we say, "We won't charge you for amounts less than 2 bucks", that's totally within our control. We would simply use the ratio as a rough guide for future corrections.
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