Need help with IF function in a formula

[RonAR]

I’m hoping someone can help with a formula.
If the data looks like this:
10
7
6
10
9
9
3

What would the formula be to calculate that array of values = 57% because 4 of them are equal to or greater than 9, and there are 7 of them in total? The formula should accommodate however many numbers are listed and calculate what percentage of them are 9 or 10.

Thank you.