(This is an example just fees and not trade volume)
So if they do $7 mil that week in fees ( $1 mil per day and keep in mind fees are sent to a holding wallet) and if nvsx is $0.99 cents there will be 6,930,000 actual nvsx sent out and divided amongst the nvst holders.
now if let's say i held 1060 nvst out of the 6,930,000 NVSX I would receive 1 nvsx at the end of the week , i would then exchange that 1 NVSX for $0.99 (since one nvsx is only worth $0.99) cents worth of btc and that btc is taken from the $7 million in fees that are being stored in the holding wallet.
if the DEX fees could be $7 mil a week (very likely more by the end of 2018) and you have 1060 nvst you'll gain 7.000.000 / 15.000.000 nsvt =
$0,46 x 1060 = $494 a week ($25600 year)
and the token is so cheap righ now? my guess is 30/50$ minimum.
i see from xchain that fresh money is coming and almost no NVST are left on counterparty dex.