How do you use a formula in a pivot table to calculate the % of two fields
that contain only words not numbers. Count of weeks as a % of A/T
Fields:
A/T Weeks Number

A 24 Weeks 4
A 12 Weeks 5
A 12 Weeks 2
t 24 Weeks 1
t 24 Weeks 7
t 12 Weeks 4
t 13 Weeks 9
t 13 Weeks 2
t 13 Weeks 8
A 13 Weeks 15