I have a range of cells that will users can put information in. If anyone of
those cells are entered then in a separate section of the same worksheet,
those numbers are used to calculate a percentage.

A B

1
2
3
4
5

Column B1 = A1 * A3
Column B2 = A5 * A2

etc etc.

I want Column B to automatically generate the answer upon a change in Column
A.

I have read that worksheet_change would work.. but i'm not sure how that
will work with implementation of change in several different cells.

Any help would be greatly appreciated.
Thanks