Chris Willman Senior Music Writer and Chief Music CriticIn the wake of an ongoing furor over “dynamic pricing” for Bruce Springsteen’s tour, Ticketmaster took the unusual step Sunday afternoon of releasing some statistics about costs and percentages for the dates that went on sale last week. Downplaying the number of controversial “platinum” tickets with variable prices that reached as high as $5,000 apiece on the first day of on-sales, Ticketmaster says those represent only 11.2% of the overall tickets sold.By the ticketing service’s calculations, that left the other 88.2% of tickets sold at fixed prices that ranged from from $59.50 to $399 before added service fees.Ticketmaster further says that the average price of all tickets sold so far is $262, with 56% being sold for under $200 face value.