Amy files her $2023$individual tax return as a single filer. Her taxable income is $$700,000.$To determine whether or not her alternative minimum tax liability is higher than her regular tax, she uses the following information:

Adjustments that increase AMTI: $30,000$

Adjustments that decrease AMTI: $10,000$

Preference items: $15,000$

Amy does not have any tax credits.

Please calculate Amy's $2023$ alternative minimum tax.