2022 California Standards for Accessible Design Guide (effective January 1, 2023)

11B-104.2 Calculation of percentages.

Where the required number of elements or facilities to be provided is determined by calculations of ratios or percentages and remainders or fractions result, the next greater whole number of such elements or facilities shall be provided. Where the determination of the required size or dimension of an element or facility involves ratios or percentages, rounding down for values less than one half shall be permitted.