the pink plate is very nice, i assume the damage seems to be done by another coral 's sting or bad rock fall?
The pink tip plate seems to be quite uncommonly in the local market now..
Recovery chances are ok as long as the flesh doesnt start to rot, be very careful not to let the bare skeleton having signs of green algae.
Meanwhile keep min. light for this coral and always keep the water keep, please do not keep any sand shifting gobies during this period.
Keep all the corals off the rock unless u have manage to stuck them in some crevice, else your hermit crab will create another earthquake again.