The initial supply is 17M. It's not the max money supply, like all PoS coins that is higher.
Thank you for a straight answer.
So, at what rate will new coins be created?
i.e. how many above those needed to pay the 7%?
7% of 17 million is 1.19 Million, which is 32,600 coins per day. (in year 1)
You say 30 seconds/block, that's 2880 blocks/day - so if the reward/block is over 1.13 more coin is being produced than will be paid out.
Yeah, the question really is -
How many coins are you planning on keeping for yourself?