I noticed that my W-2 has a lower amount than last year's W-2. It's weird because I had a wage increase. Why is this?

Did you put more in your retirement plan?   Did your health insurance cost more and it was deducted pre tax ?

Yes and no to your questions... but it's weird because ALL 3 are equal.
wages, tips and other compensation = social security wages = medicare wages and tips...

That's looks weird right? Definitely sending it back to employer for review :)thank you so much for your help!

Yes, please return it. You are welcome.

You will need to speak to your employer.  If the amount is incorrect they need to issue a corrected Form W-2c.

Yes and no to your questions... but it's weird because ALL 3 are equal.
wages, tips and other compensation = social security wages = medicare wages and tips...

That's looks weird right?