What property rates would be needed to fund states like California and Massachusetts without sales or income taxes? What would be the effects of such a shift?

Assuming the states make revenue-neutral shifts from income/sales taxes to property taxes, would rates need to be 8-10% to fund both state and local services? Or would they need to closer to 20% due to decreased in property valuations?

Would such a shift make the state revenues more stable and improve their economies? Or would it be worse than status quo?