What's the masternode reward?
Its all on the first page.
Rewards from masternode include: FXC coins daily and in the future will include altcoin traded on the floor.
How will be calculated the reward for Masternode from the coin transactions on the exchange ?
Reward = 50% total transaction fee on the floor of the Altcoin
How can you control the transaction on the exchange?
Did you mean just your exchange?