Those statistics are meaningless, except to give you visual reassurance that the miner is working. In pooled mining, every miner is compensated based upon the work the miner submits. In variable diff, the pool determines how "difficult" the shares it will accept from the miner are. It bases this on figuring out how many shares the miner is submitting in a given time frame, and adjusts it according to how many shares the pool wants to accept in that same time frame.
Let's take BTC mining as an example. A pool wants to get six shares a minute, which translates into expecting to receive one share every 10 seconds. You have an S9, which hashes at 13TH/s. You can calculate how many diff 1 shares that miner expects to solve per second based on the following formula:
hash rate / 2^32 * difficulty
So, for our S9 at 13TH/s, we can see that it expects to solve 3026.8 diff 1 shares per second. That's considerably higher than what the pool wants to track, so to compensate, it adjusts the difficulty of the share it will accept from the miner. As difficulty increases, the number of shares solved per second decreases. To get to our target value of 0.1 shares per second, we simply solve for difficulty in the above formula:
13000000000000 / 2^32 * diff = 0.1
In this case, the diff would be adjusted to 30268. This way, every time the miner successfully solves a share of that difficulty or better, the pool records the miner having submitted a share. The pool will typically constantly adjust that value based upon how many shares the miner actually has submitted during the time period. If it has gotten more shares than expected, it will increase the difficulty. If it has gotten fewer, it will decrease it.
All of that data is collected, and when some miner finally does submit a share that actually solves a block, then the pool calculates how to distribute the block reward amongst the miners. That distribution is based on whatever payout mechanism the pool employs.
That's all well and good for pooled mining, but when you're solo mining, none of it matters. You can submit a trillion shares and not find a block. Or, you could submit just a single share and that one solves a block. No matter how many shares you submit, the only one that will ever matter is the one that solves the block. When that occurs, the pool will distribute the reward. Either the pool generates the reward to its own address, then pays out later, or more likely the case in solo mining, the reward is distributed to you as the coinbase transaction.
The values you're seeing in the screenshot you shared are there purely for you. It's a reassurance that your miner is working by providing a visualization of things. In the screenshot, the pool has assigned a difficulty of 8 to your worker, and that worker is submitting 15.87 solutions per second. None of that means anything to the pool, or to the network, or even to your miner. Only if the miner submits a share that solves a block will you receive anything for your work.