Actually, Oregon corporate income tax rates  are in the middle of the pack when compared to the rest of the country.  You are simply repeating this misinformation from the "Yes of Measure 97" supporters.

See: http://taxfoundation.org/article/state-corporate-income-tax-rates-and-brackets-2016

There are other misleading talking points from Measure 97 supporters who simply want to add more money to the general fund. Nowhere are these supporters interested in looking at improving state spending or adopting best practices that work in other states.

As for school funding, we are near the bottom for graduation rates, but again, in the middle of the pack for actual dollars spent.

For the shopping cart comparison, again using the same ad from the same stores located in different states does not indicate "prices will remain the same". A more realistic look at the shopping basket might be a bit more revealing. Heck, there are differences in prices within the same state for different stores.