Nothing sticks out other than Google Chrome. If you have a lot of Chrome windows open, close a bunch of them.

What is the total percent of Memory used as shown in the 2nd column?

You might want to click on "Options" in Task Manager and checkmark "Always on top". Resize the window smaller by dragging the sides in using your mouse cursor. Then, drag it to a corner of your screen - or anywhere you'd prefer - and you will be able to monitor your Memory usage while actually using your computer, Uncheck Always on top and resize the window when you're done.

Jim.