How to find LOWEST and HIGHEST point in a class

Hello everyone!
So this is my second post here (sorry if my English still bad haha)

I have a problem (of course )
The resume of my question is:
How to find the lowest and highest value in a class?

Please find my attachment in this post.

Thanks everyone
Salam from Indonesia

Selamat pagi Ihsan.

Put this formula in M3

Formula:

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and this in N3

Formula:

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NOTE: These are array formulas, as such, you need to type in the formula and press CTRL SHIFT ENTER rather than just enter.

Wow, thanks alot @quekbc

Its work! Terima kasih