Some clients would like to have the ability to spot numbers with a minus sign that are in source, but are not inserted into the target. 

Current behavior: 

There is no QA check aimed at the minus sign not inserted into the target. 

Workaround: 

In project settings, insert a new custom check. Name it Missing negative and put in \- to both Source and Target regular expression field. 

Required behavior: 

There is a QA check aimed specifically at the minus signs not inserted into the target. 

Use case: N/A