Custom column operation

Hello

I have the following table

I also have a measure1 = 13000

I want to make a new column where I do the measurement operation1 * The pcent that corresponds

Staying:

year plus pcent national
2023 1 7 7*measured1
2023 2 8 8*measured1
2023 3 9 9*measured1

It's possible?

Thank you.