2Miners pool uses fair reward system "Pay Per Last N Shares" - PPLNS 12000 Shares. This system is used to prevent "pool hopping". Pool checks how many shares you've sent from the last 12000 of pool shares and makes the payouts based on that value. For Equihash coins 20000 last shares are taken into account.
Ethereum - last 50000 shares
Other Dagger Hashimoto - last 12000 shares
Equihash - last 20000 shares
Share rate of the miner is shown on the statistics page as well as the approximate reward of the miner if pool finds block right now. This reward is just an estimated value. The found block could include some transactions and cost more. On the other hand the block could be Uncle or Orphan.
2Miners mining pools: https://2miners.com/
2Masternodes masternode shares and hosting: https://2masternodes.com/