Does the fact that some of the evidence used in the calculation of damages in a personal injury case have to be inadmissible or incompetent?

The fact that some of this evidence was hearsay did not render it inadmissible or incompetent. As set forth above, a trial court has expansive discretion as to the type of information and calculation methods that may be used in determining restitution. (Phu, supra, 179 Cal.App.4th at p. 283; see People v. Prosser (2007) 157 Cal.App.4th 682, 691-692.) And section 1203.1d, subdivision (d) expressly prohibits exclusion of documentary evidence on hearsay grounds in determining restitution.