IF, AND, OR Function:True is equation with neg result, False is equation with pos result

Good Afternoon,
After searching for over an hour I am reaching out for help with the following formula:

=IF(OR(AND(F11=Bow,B7=Port), AND(F11=Stern,B7=Starboard)),"(F17*F10)/D8","(F17*F10)/D8)"

To explain:
When drafting a vessel if the trim is to the bow and testing is done on the port side then the resulting answer should be a negative number.
Likewise, if the trim is to the stern and testing is done on the starboard side then the resulting answer should be negative.

Checking my formula, Excel recognizes the logic and the resulting "true", "false"; however, it is not producing any result in testing, nor can I accomplish input to render the "true" result a negative in the equation.

Online currently and looking for quick response.

Thanks!

Thanks for the quick reply Jeff!
I added the quotes thinking that the formula needed to be encapsulated as the result but then deleted after posting here.
So the current syntax is correct.
The "True" result should be a negative result of the same equation as the "False" which would remain positive.
The equation is meant to calculate variables that will result in a factor for a subsequent equation, and in that equation this variable will be calculated to produce another variable based on either a subtraction or addition based on whether it is positive or negative.
Please reference the "Worksheet" tab in the attached workbook.

Sorry! The syntax wasn't corrected in what I sent but in reviewing your syntax I realized I lacked spaces before the results, which allowed me to change one result to a negative result; however, it still does not calculate a result.
See attached.

Formula

=IF(OR(AND(F11="Bow",B7="Port"), AND(F11="Stern",B7="Starboard")),(F17*F10)/D8,(F17*F10)/D8)

OR

=IF(OR(AND(F11={"Bow","Stern"},B7={"Port","Starboard"})),(F17*F10)/D8,(F17*F10)/D8)

That did it!
Thank you very much!

You're Welcome. Thank You for the feedback and for marking the thread as 'Solved'.