'It is clear from Van Gervan v Fenton [1992] HCA 54; (1992) 175 CLR 327 that the process to be undertaken is an assessment of the injured person's need for care and services, which is then valued by reference to commercial rates charged for its provision, regardless as to whether they were in fact provided gratuitously, by relatives or partners: see also Kars v Kars [1996] HCA 37; (1996) 187 CLR 354. It follows that, unless there be shown some basis for differentiating between the extent of the need, or what was necessary to fulfil it, the calculation for past and present care must be the same. In this case once the appellant's injuries stabilised the need remained the same, save that in the future it may increase somewhat should his intellectual processes further deteriorate. The cost of care likewise remains the same. It has however been calculated to include, with respect to both the past and future costs, live-in components referrable to carers. One would not think this ought to be applied to the cost of the parents' care, since they resided with the appellant in any event. Such an approach would not however be consistent with Van Gervan. The appellant's need was for full-time care and the commercial value of it, which is the exercise to be undertaken, includes a live-in allowance. In our respectful view the only basis apparent from the Master's reasons for what is a very substantial reduction in the award for this head was a concern that the cost of the parents' services appeared to be too much. The evidence however required such a conclusion. It follows, in our view, that the award must be increased by the sum of $420,088 ($670,088 less the $250,000 awarded).'