Make Calculated Value Stored into a Entities Attruibute

Make Calculated Value Stored into a Entities Attruibute

  
I have a form that creates are record. I have used an assign property and set the variable to Balance, the value to PawnAmount * 1.25. What I am waning to do is let it take the PawnAmount * 1.25 and store that value in the Balance Part. This assign is used in the save button. I have tried this before and after the actual create record action in the Save button's action. If you have a better way of doing this or know where I am going wrong, please let me know.

Thanks for any help.

I have uploaded my .oml just in case you would like to see how I have it set up in the system.
Hi Michael,
 
I've attached the eSpace with a little change and I added a comment inside the screen action Save explain you why i did that change.
 
Let us know if you have any question.
Regards,
Nelson Baptista