How does the 0.8% p.a. interest rate work for RHB High Yield Savings Plus Account work?

It says for the first $50,000 the interest rate is 0.80%.

I'm confused if this interest it only applies if you have $50,000 in the account? What if I only have $9,000 in the account? Will I get to enjoy interest on the $9,000?

I am quite clueless in regards to this topic so hope you can bear with me.

Thanks in advance!