Question : MS Access turn values  into percentages

I have a table with a number of fields containing values.  The final field is a total of the values in all other fields.  I need to turn each of the values into the relevant percentage (based on the total in the final field) but I need to do this whilst preserving the name of each field.  It is not a problem if a new table is created but the field names must be the same.  I can do the percentage bit but not without changing the field names.

Any ideas

Many thanks

Answer : MS Access turn values  into percentages

If you can copy the worksheet and then do so and calculate the percentages in the copy referencing values in the original sheet.