UJI 13-1815. Personal property depreciation and repairs depreciation vs. before and after rule; unrepaired.

In determining property damage, you may award only the smaller of two figures which are calculated as follows: One figure is the reasonable expenses of necessary repair to the property damaged plus the decrease, if any, in the fair market value of the repaired property as compared to its fair market value before the occurrence; and The other figure is the difference between the fair market value of the property immediately before the occurrence and the fair market value of the unrepaired property immediately after the occurrence.