Weird curve for my class?

For one of my tests, the professor said that a 77% would be a B. If I got a 88% what would my curved test grade be??
I’m assuming it’s an A or A -,but is that right because what about people who got an A to begin with? Wouldn’t that put them at like over a 100% (with the curve)?? I need some clarification please.

Ask your professor, many professors curve differently. One of mine curved so that 40 was a C… the 100’s didn’t get a any extra boost.

Like you, I would guess A/A-.