Crystal Reports use external database date

Message

     I have a formula for differents team, like T10 - T20 - T30 ,etc. I using hadr code to put the number values as a %. I though to create a database as a table like   date    team  Percenrtage
  this          Sep       10        21
                  Sep       20        32
                 Sep        30        45
                 Oct        10        34
                 Oct        20        45
                 Oct        30        55 

and replace the hard code with the information in the database. But each team has to get it own percentage number. How can I replace the hard code value? or distribute those. Maybe load it to array and then a loop in each formula or maybe create the database with different structure.
I appreciate any idea.

thanks