E

In Ianni v. Grain Dealers Mutual Insurance Company, 42 Wis.2d 354, 364, 166 N.W.2d 148, 153 (1969), the supreme court set out some general rules regarding determination of loss of earning capacity. 'One who is injured in his person may recover for any consequent . . . loss or diminution of his earning capacity. . . . 'The proper element of damages in such cases is loss of earning power; that is, the permanent impairment of the ability to earn money. . . . 'The burden is on the plaintiff to establish to a reasonable certainty the damages sustained. 'The jury is not ...