To start with:
You earn:
Steem (the coin/token) which you can use to power up (your SP) or sell so you have cash. That is the first amount you see.

Next you see your SP = Steem Power. The more power you have the easier it is to post and comment and the more worth your vote is.
You can power up by using Steem or power down (if you need money)

You also earn other Steem (the last amount the app Partiko calls it Steem dollar) which you can sell if you need money. I do not believe you can use it to power up. This is the last amount you see.

If you write a post you can choose how the amount you earn with it will be divided.

Options are:

1. No pay out
2. 50/50 50% = SP and 50% = Steem or
3. 100% SP, all you earn will be used to power up.

I hope this helps you 💕