If user has to add any other additinal charges then follow the below steps:

>> Go to tax order form
>> After selecting product click on “add button” from middle
>> some fields will open
>> now select additional charges from dropdown or if in dropdown not available then can click on add new charges
>> add Additinal charges label as per your requirment and add additinal charges amount
>> click on Submit
>> Now this added Charges will get added in order total amount and calculate grand order total Amount.

EX. Lobour charges, packaging charges