A camera weighing $11$ N falls from a small drone hovering $25$ m overhead and enters free fall. What is the gravitational potential energy change of the camera from the drone to the ground if you take a reference point of

the ground being zero gravitational potential energy? $$PE$=$ J

The drone being zero gravitational potential energy? $$PE$=$ J

What is the gravitational potential energy of the camera $($with the reference point of zero gravitational potential energy taken to be a second person looking out of a building $30$ m from the ground$)$

before it falls from the drone? PE$=$ J

after the camera lands on the ground? PE$=$ J