What does the number in white on the bottom right of my profile after a game mean?

I see my user name in lower left hand of the screen.  Under that is my current rating.  After a game next to the rating is my increase or decrease.  To the right of that is a tropy and to the right of that is another number only visible after a game.  It dissapears when a new game is started.

is it the rating for my performance in this game I just played?

and can you post screen shots in this forum?  First time I have posted here.

thank you in advance.

Yes. Screenshots can be posted.

However, if you just joined, there is a waiting period.

How do you post them? I have been a member for years.

What you are talking about is probably the number of trophies you have accumulated for the week in the Leagues competition. That ended several years ago but the mechanics of it still work.

You have to be using the website. There are a lot of forum options on the website.

I am using the website now using a browser app on my Android phone.