Correctness of two corona test?

Let’s say a corona test is correct with p=0.8. If I now take two tests. What’s the probability that I get a correct result?

I think thought of 0.8*0.8, but that makes now sense, since it should not decrease and 0.8+0.8 gives a probability over 1, which makes no sense either. Or maybe that Bayes probability example?

Edit: I would like to extend my questions: What’s the probability that I am negativ with one and with two tests? There the probability with two should increase if I am actually negative? Thanks for the answers.

The probability that both tests are wrong is $(0.2)(0.2)=0.04$. Therefore, the probability that at least one of them is right is $1-0.04=0.96$.

This, if course, assumes that both tests are independent.

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