Board Thread:Support Requests - Getting Technical/@comment-24978757-20150325093804/@comment-4902411-20150325112620

I'm not sure what you are trying to calculate.

That page transcludes two templates inside an expr parser function. Expr accepts only numeric characters for calculation, but both of your templates begin with a pipe, which breaks the parser function. Judging from how the templates are arranged, I believe you're trying to use the switch parser function?