Format 0.0%

Workview-only. Applies a one-decimal-place percentage format to every data cell associated with the working list - 0.123 displays as 12.3%.

Like every Format instruction, it applies to the entire working list built up so far, not just the element it's attached to. If a set mixes measures needing different formats, place Ignore New Formatting On Prior Members between them so a later format doesn't override an earlier one.