To the extent that the largest payers of this tax are market leaders, they will set their prices and their smaller competitors will raise theirs in ratios similar to the status quo.  
Consequently, the prices of businesses large and small will be higher for all of us - whether we are buying cars or corn flakes.
This is a sales tax pure and simple.
Only it is worse than a sales tax - the amount of which a customer can see on a sales receipt.

Oregonians should vote no for this 30% increase in tax revenue.

The tax is earmarked for certain highly valued government services.  But that does not keep the legislature from diverting existing revenues - now going to those purposes -- to other functions.  

The biggest use of these funds will be to further pad the accounts of PERS.  The biggest recipient is promised to be K-12 education - but we cannot depend on that money reaching the stated biggest need - class room size.
School districts have done little on that score to date.