Please help me with a law of delict 320 question paper

While speedboat champion X is waiting at a designated point. Y, inadvertently crashes into him from behind. X is seriously inured partly because he failed to wear a crash helmet as prescribed by the regulations applicable to boating on that dam. There is no fault on X's part in causing the accident while Y's conduct conforms to all the delictual requirements including fault. X sufferers damage in the following. a) R45 000- fractured collar bone, b) R82 000- damage to his boat and c) R96 000- head injuries. The court finds that if X had worn the required crash helmet, his head injuries would have amounted to only R48 000. The court finds that there is 30% contributory negligence on the part of X in respect of the higher amount of his brain damage, while Y's negligence in that respect is 50%

Calculate the entire amount that X is entitled to claim from Y, showing the stages of your calculation