—all of the evidence in the light most favorable to the prevailing party, giving it the benefit of every reasonable inference, and resolving conflicts in support of the [findings].[Citations.][¶] It is not our task to weigh conflicts and disputes in the evidence; that is the province of the trier of fact. Our authority begins and ends with a determination as to whether, on the entire record …

" `We review the trial court's findings of fact to determine whether they are supported by substantial evidence.[Citation.] To the extent the trial court drew conclusions of law based upon its findings of fact, we review those conclusions of law de novo.[Citation.]'[Citation

When a contract is reasonably susceptible to different interpretations based upon conflicting extrinsic evidence requiring the resolution of credibility issues, its interpretation evolves into a question of fact to which the reviewing court applies the substantial evidence standard of review

Only if the language is reasonably susceptible to an interpretation urged is the extrinsic evidence admitted to aid in interpreting the contract

" `[W] e may affirm a trial court judgment on any [correct] basis presented by the record whether or not relied upon by the trial court.[Citation.]'[Citation

Where the extrinsic evidence is not in conflict, construction of the contract is a question of law, and the appellate court independently construes the writing

Where the evidence is undisputed and the parties draw conflicting inferences, the reviewing court will independently draw inferences and interpret the contract

—ends with a determination as to whether, on the entire record, there is any substantial evidence, contradicted or uncontradicted, in support of the judgment.'...[t] o be substantial, the evidence must be of ponderable legal significance, reasonable in nature, credible, and of solid value. However, substantial evidence is not synonymous with any evidence.'The ultimate test is …

"Because it is not our responsibility to scour the appellate record for evidence to support a party's position, we consider only evidence cited by the parties

Courts must avoid an interpretation that will make a contract extraordinary, harsh, unjust, or inequitable