@ScienceDuck, corporate business tax is on actual operating profit/income with the two examples you cited for Oregon and Iowa. You have no idea what Apple makes profit wise in both states.

What is clear is that in Oregon, a C corporation will pay a corporate income tax based on present law, and an additional 2.5% tax on gross sales in Oregon over $25M regardless if the business is profitable or not. So..that means the new tax is due even if the business has an operating loss. Not too many businesses, if any, are will to do that.