Applying Dependency for Calculated Fied

Hi, I have one field of drop down options and multiple calculated fields. Now, I want that if I select one of the options in a drop down, it only shows a specific calculated field and does not show other calculated fields. How to do that?

Actually my concern is. that let’s say I have drop-down of different modes of transactions having certain fee. Now, I have made calculated field for each mode of transaction. I want that if i select certain mode of transaction from drop-down, it only shows specific calculated field and hide all other calculated fields.