What is the test for estimating future loss of pecuniary value?

In assessing future loss I am required to estimate a pecuniary loss by weighing, while not specifically being required to assign specific numeric values to, the possibilities and probabilities of future events and relating the evidence and findings of fact to the quantification of the loss: Dunbar v. Mendez, 2016 BCCA 211 at para. 21. Contingencies ought to be considered in each case to aid in the proper assessment of damages to ensure fairness and reasonableness of the award.