What is the test for damages in a motion for a new trial?

of damages is a fact question, committed first to the discretion of the jury and next to the discretion of the trial judge on a motion for new trial. [Citations.] All presumptions favor the trial court's ruling, which is entitled to great deference because the trial judge, having been present at trial, necessarily is more familiar with the evidence and is bound by the more demanding test of weighing conflicting evidence rather than our standard of review under the substantial evidence rule." (Westphal v. WalMart Stores, Inc. (1998) 68 Cal.App.4th 1071, 1078, 81 Cal.Rptr.2d 46.)