Best Solution to get data

Dears,

I have data in MyCalculationViewlike below,

I want to create MyCalculationViewto get X7, X8, X9, X10 and it's formula will be:

    X7 = (X1 / X3

    X8 = (X1 * X3)

    X9 = (X2 / X5)

    X10 = (X6 / X3)

and I've two solutions to get my desired resullt

1. Creating restricted column in MyCalculationView for each X1, X3, X2, X5, X6 and then reused my calculation view in another one to be able to calculate the columns
2. Reuse MyCalculationView in other one four times with adding filter in ITEM column.

but I believe neither of two solutions is best practice.

So what is the right thing I should do.

Regards