Error: on line 169, column 38 in tpl/2006/h/www.hlbook.com/zh-CN/displayproduct.html
Expecting a number here, found: 
The problematic instruction:
----------
==> ${(product.discount?number/100)*(product.currentprice?number)} [on line 169, column 35 in tpl/2006/h/www.hlbook.com/zh-CN/displayproduct.html]
 in include "../${common_user_tplurl}/zh-CN/displayproduct.html" [on line 2, column 1 in zh-CN/displayproduct.html]
----------

Java backtrace for programmers:
----------
freemarker.core.NonNumericalException: Error: on line 169, column 38 in tpl/2006/h/www.hlbook.com/zh-CN/displayproduct.html
Expecting a number here, found: 
	at freemarker.core.StringBuiltins$numberBI.calculateResult(StringBuiltins.java:186)
	at freemarker.core.StringBuiltins$StringBuiltIn._getAsTemplateModel(StringBuiltins.java:71)
	at freemarker.core.Expression.getAsTemplateModel(Expression.java:89)
	at freemarker.core.ArithmeticExpression._getAsTemplateModel(ArithmeticExpression.java:83)
	at freemarker.core.Expression.getAsTemplateModel(Expression.java:89)
	at freemarker.core.ParentheticalExpression._getAsTemplateModel(ParentheticalExpression.java:75)
	at freemarker.core.Expression.getAsTemplateModel(Expression.java:89)
	at freemarker.core.ArithmeticExpression._getAsTemplateModel(ArithmeticExpression.java:83)
	at freemarker.core.Expression.getAsTemplateModel(Expression.java:89)
	at freemarker.core.Expression.getStringValue(Expression.java:93)
	at freemarker.core.DollarVariable.accept(DollarVariable.java:76)
	at freemarker.core.Environment.visit(Environment.java:196)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:196)
	at freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:79)
	at freemarker.core.Environment.visit(Environment.java:196)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:196)
	at freemarker.core.Environment.include(Environment.java:1375)
	at freemarker.core.Include.accept(Include.java:155)
	at freemarker.core.Environment.visit(Environment.java:196)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:196)
	at freemarker.core.Environment.process(Environment.java:176)
	at freemarker.template.Template.process(Template.java:232)
	at freemarker.ext.servlet.FreemarkerServlet.process(FreemarkerServlet.java:427)
	at freemarker.ext.servlet.FreemarkerServlet.doGet(FreemarkerServlet.java:366)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:115)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:92)
	at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:106)
	at shield.front.action.filter.NotAllowedToTunFilesFilter.doFilter(NotAllowedToTunFilesFilter.java:34)
	at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70)
	at com.kenfor.util.filter.InvalidSQLinjectFilter.doFilter(InvalidSQLinjectFilter.java:58)
	at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70)
	at shield.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:39)
	at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70)
	at shield.sysadm.website.sitemap.GotoSitemapConfirmfileFilter.doFilter(GotoSitemapConfirmfileFilter.java:74)
	at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70)
	at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:173)
	at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229)
	at com.caucho.server.hmux.HmuxRequest.handleRequest(HmuxRequest.java:420)
	at com.caucho.server.port.TcpConnection.run(TcpConnection.java:514)
	at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:520)
	at com.caucho.util.ThreadPool.run(ThreadPool.java:442)
	at java.lang.Thread.run(Thread.java:595)