I have never heard anyone say "how is the score" in English. It would be "what is the score".
We didn't use it often, but we did occasionally use "how da score?" in pidgin small kid time.
The translation seems accurate, but what does this mean?
You might ask this kind of question to find out if the team you are rooting for is winning or losing. "How is the score?" Is it looking good or bad? Is your team up by a lot or down by a lot? Is it close? Tied? And so on.
No, I would ask What is the score.
Who says How is the score???
Seems maybe informal to me. If it's just another way to say it
So how would you say "What's the score?"
You could say, "ʻEhia ka helu ʻai?" where ʻehia is asking "how much" or "how many" (points).
can you also say he aha ka helu 'ai