In the spreadsheet above I’ve highlighted in green the 14% line.
This would put just over 1,000,000 BTCZ per day into the Community Fund.
At today’s approximate value of 1 BTCZ = 10 satoshis of BTC, that’s .1 BTC per day, or @ $640 per day.
That’s just over 30,000,000 BTCZ per month, or 300m satoshis of BTC per month, or $19200 per month.
I suggest thinking along the lines of this being the minimum amount to raise - not a soda straw (too little), not a tsunami (too much), but perhaps a fire-hose of decent strength that can be pointed where it will be highly useful, again and again.
I have voted for “Even more than 5%” because I think a higher percentage would have the optimal best effect for the coin and all it’s participants.
IMO, taking 1m or even 2m per-day (out of 7.2m) off of the exchanges will have strong dual advantages of
a) lowering daily supply-to-market (lowering total so-called “dumping”) enough to at least assist a rise in price from the supply/demand POV
b) providing a Community Fund of substantial enough size to really get some things done!