Board Thread:Support Requests - Getting Technical/@comment-188.24.119.154-20151103181142/@comment-4731443-20151103214929

Perhaps more advanced features like Lua could analyze the string and determine the currency (if Dessamator is around, he would know more about that), but with just wikitext I think you would need a different parameter to specify your currency.

An alternative would be to make an icon template that can display various currency symbols, and that would be called as part of the parameter value rather than in the infobox code, e.g.: |value1=30$
 * value2=20£