When removing these classes from the list it centers correctly. All three classes affect the centering offset and removing each one individually nudges the text to the true center. This does not appear to be a configurable item in the panel, however.
You have icons there and they are white. For that reason you can not show texts on its place. Please from the “Table Manager” where you have created Pricing change the icons to “None”. After that, your all problems will be solved.