It’s at 100x100x200 from its parent. If your object is not parented to anything else, then yes, it’s at 100x100x200 from the center of the world.
If you have an object at 100x100x100, parent your object under it and move it 100 units in X, it will have 100x0x0 as its (local) location. Its world space location will be 200x100x100.