NEW YORK — Broadway grosses held steady during Week 9 (July 21-27). B.O. of $13,887,752 was up by a minuscule 0.6% for the week. Attendance of 207,375 was up by a similarly small 0.8%.As the numbers indicate, most shows saw only minor fluctuations at the box office. Biggest gainers were Disney twosome “Beauty and the Beast,” up by $58,505 to $677,221, and “Aida,” up $63,227 to $764,597. Latter now stars R&B diva Toni Braxton, a onetime star of “Beauty and the Beast.” Heftiest falloff of the week came at “Gypsy,” where Bernadette Peters missed a perf. (Her husband underwent a medical procedure.) Show dropped by $42,153 to $811,866. The 19 musicals grossed $12,654,232 for 91.1% of the Broadway total, with attendance of 187,877 at 93.2% of capacity. The four plays grossed $1,233,520 for 8.9% of the Broadway total, with attendance of 19,498 at 69.8% of capacity. Average ticket prices were $67.35 for musicals, $63.26 for plays and $66.97 for all shows.