How to Upgrade to Cubase 12 Pro

I have Qbase Pro on in iMac running 13.6 I can’t upgrade any further in regards to Apple OS. I’d like to know what is the cost if any to upgrade from to cubase 10 Pro to 12 Pro and what’s the specs? If it does cost any money is there any deals that I can get even outside of Steinberg if it’s too expensive within Steinberg?

The required computer specs are at the bottom to this page. And if you click on the Buy button you can see the various upgrade prices