How is the blood money (diyya) estimated for a fractured leg resulting from a traffic accident, where the other party is at fault, considering that the injured person is unemployed and has no steady source of income?

If the leg is completely lost due to a fracture, then half the blood money (Diyya) of the injured person is due. If the leg is not completely lost, then a just compensation (Hukoomah) is due, estimated through ijtihad (independent reasoning).