MS ACCESS FORMS - Field Expressions for Auto Computations

Creating MS Access Forms that automatically computes Temporary Fields can be created in MS Access Forms by simply assigning a title. This temporary fields can then be used to create other temporary fields that produces the needed data computations. To better understand this, I will give you an example which I recently designed for an Insurance Firm. 

 1. Create a Table for AutoComputation with the following fields: 

 2. Create a Form using the above table. 

 3. Copy and Paste the field name AmountInsured to the form. 

 4. Edit the copied field by changing its name to Premium. 

 5. Edit the copied field by changing the Control Source to : =[AmounInsured]*[AmountInsuredRate]. Change the Details Name to Premium. Now you have a temporary field named "Premium"