Submissions and decision
12I turn now to Composters' submissions. Composters submits that I should not quantify damages in the way that I provisionally did. In essence, however, Composters does not quarrel with my proposed methodology as a methodology. Rather, it submits, the underlying financial records - the financial statements for the 2008/2009 and 2009/2010 financial years - should not be accepted as reliable. Thus, Composters submits, it is not appropriate to use those figures as the basis for any calculation of damages.
13The submissions for Composters did not address the question of whether, assuming that the figures do possess a sufficient degree of liability, the methodology was, nonetheless, incapable of leading to an assessment of damages that possessed a sufficient basis in fact and reason to form the subject of a judgment against it.
14The position of Composters, as to the accuracy of the financial statements, is surprising. As is pointed out in the submissions on this issue for Robertson, Composters' written submissions at trial had put that the profit and loss statements should be accepted as reliable, in preference to figures given by Mrs Robertson in her affidavit (and, I add, in addition to figures derived from a trial balance which, ultimately, I rejected).
15The further submissions for Composters do not explain why it is that the financial statements have become so unreliable as to be an inadequate basis for any assessment of damages.
16The submissions for Composters referred to what Gleeson CJ said in Troulis v Vamvoukakis [1998] NSWCA 237 at p14. His Honour there said that where "what is involved is the valuation of the goodwill of a business, and the plaintiff fails to adduce either reliable evidence of the trading results of the business, or evidence as to how one goes about valuing such a business, then there is an absence of the raw material to which good sense may be applied. Justice does not dictate that, in such a case, a figure should be plucked out of the air".
17That was a case where the plaintiff claimed damages for misleading or deceptive conduct said to be constituted by misleading representations as to the takings and hence the goodwill of a business. The plaintiff did not give any adequate evidence of his takings after purchase. Not surprisingly, Gleeson CJ considered that the plaintiff had not made good this aspect of his claim.
18The present case is different. The breach (in my view) was clear. The raw financial figures were proved. There was a rational (if not entirely precise) basis for applying the expenses incurred by Robertson over the years to the different aspects of its business. There was thus a basis for estimating (again in a way that could not be described as entirely precise) the profits lost by the breach and repudiation of its contract with Composters.
19The question with which I was faced was not a total absence of any reliable evidence as to the financial affairs of Robertson but, rather, what I perceived to be deficiencies in the methodology for calculation of damages that it propounded. As I have said, the submissions for Composters do not attack, as a methodology, the way in which I proposed that damages should be assessed.
20In those circumstances, I do not regard the observations made by Gleeson CJ in Troulis as having any real bearing on the present issue.
21As Sackar J observed in Camellia Properties Pty Ltd v Wesfarmers General Insurance Ltd [2013] NSWSC 1975 at [390], the process of estimating damages, where future or hypothetical events are concerned, has been described by many epithets: imprecise, indeterminate, speculative, based on slender materials, or on thin evidence, involving guess work, and prophesy or judicial guesses.
22However, as his Honour pointed out, the fundamental task of the court is to adopt a rational process of reasoning and to apply it to such evidence as there is that bears on the question to be decided.
23I accept that the materials on which I based my provisional assessment are not as full as they might be. I accept that the resulting provisional assessment has an element of imprecision. But I do not accept that the methodology lacks any rational basis. Nor do I accept that it is not capable of application based on such financial records, and other relevant matters, as were proved. And, at the risk of repetition, I note that the further submissions for Composters did not submit otherwise.
24I conclude that the provisional assessment should be adopted.