SAP Persona - Carry string value from one screen to another screen with concatenate

Hello,

Can someone help me? I would like to carry text string value to another text field, but before presenting it i would like to remove a certain number of characters from the beginning of the text. For example; text = "Number of Entries (without Filtering): 47:String" and i would like to remove "Number of Entries (without Filtering): " so that only the number (47 in this case) is displayed in my `dashboard` text field.

Many Thanks,

Ben