Stacking rate for eth2 at Coinbase

Hi, I am currently stacking eth2 at Coinbase at 4.5 percent. I don’t really know at what rate it is stacking though. It is stacking every 10 minutes, a week…? And is there any compound interest ?

And I know Coinbase is probably not the best service to use for stacking but I already set it up haha. Thanks for any reply !