Help - Bug Fix Rates

Bug fix rate for the Test Organization is defined as:

   (Number of Bugs Fixed that were Found by the Test Org/ Number of Bugs Found by the Test Org) x 100

The higher the rate, infers a greater alignment with development and priorities, i.e. test is not testing features where bugs won't get fixed.

However, what's a realistic bug fix rate goal?

   70%? i.e. 70% of bugs found by Test are fixed.

Does anyone know of any numbers out there I can compare against?

Thank you!