<p>Kennywood Park could increase admission costs in the future and offer less in new attractions because of an increase in West Mifflin's amusement tax, a park official said Monday.</p>
<p>West Mifflin Council last week approved changing the borough's amusement tax to a flat 5 percent. Before, the borough and the West Mifflin Area School District split 10 percent of the ticket cost or $1, whichever was less.</p>