The ETH pool as a whole earns 10% of what the normal pool earns. Your share of that 10% payout depends on what percentage of the ETH pool your stake was compared to the rest of the people in the pool. For instance, if you were the only one who staked to the ETH pool, you receive the full 10% payout. This means that when fewer people participate, those that stake receive larger payouts. There are no late penalties, you can't withdraw early, there are no bonuses for longer stakes, and all stakes are for only one day. You can also have multiple stakes of varying amounts. Previous days payout totals for all stakers are listed in the bottom table below.