What can I do if employer inputted the wrong amount in Box 7 Social Security Tips on my W2? I kept a spread sheet to document all tips received and to whom paid.

You would need to contact your employer and ask for a corrected W-2.  However, your SS tips and withheldings do not affect your federal return, it does affect yourSocial Security Benefits whenever you can retire.

If your employer will not issues the correct W-2 you can follow the steps here to get a corrected form or file a return with correct information.