Across wester Europe, the luxury writing industry recorded $$278$ million in total sales to $12$ million buyers. A urade group sees $47$ million potential buyers in the region. The trado group divides potential buyers into a number of segments, including "Traditionalists" $(25\%$ of all $578\mathrm{.}7$ ial customers$).$ The trade group believes that "Traditionalist" customers in the region spent the Trailtion on luxury writing materials. Calculate CATEGORY DEVELOPMENT INDEX for the Traditionalist us orting mater in Cale Europe. $($Report your answer as a percent.

Rounding: tenth of a percent.$)$