For each index (VCI, VSI, etc.), add the scaled scores of the two core subtests. Then convert that sum to a Standard Score (mean of 100, SD of 15) using the table provided.
The official record form is where all the "magic" happens during administration. It is designed to capture raw scores across the five primary index scores: Verbal Comprehension (VCI): Measuring word knowledge and meaningful concepts. Visual Spatial (VSI): wisc-v record form pdf
The demand for the has surged for several reasons: For each index (VCI, VSI, etc