Setting up calculations in dc pro

[Charles23087246h80z]

Hi I'm a new to acrobat and am trying to set up some calculations n pro DC

I have the top 3 done, sum+sum= but cant figure out 2, 3, 4, 5, 6 can someone please give me a hand thanks so much

Charl

[try67]

Let's say the total field is called Total. To calculate 2% of it (for example), use the following formula under the Simple Field Notation option in the Calculate tab of the target field:

Total * 0.02

For the last one you can something like this:

Total - (Field2 + Field3 + Field4 + Field5)

[Charles23087246h80z]

Total is actually field 1, so i need field 2 to be 15% of what field 1 is 

[try67]

What are the actual field names?