ImpactMapper's single matrix type of question allows users to gather text, numerical, or financial data. This can be done by going to the 'Question Type' section of the single matrix design page and choosing 'Numerical' or whatever other data type you would like among the dropdown choices.

Once 'numerical' is selected, the 'Reach Type' appears. You can select from the dropdown choices: Unit, Year, and Percent

Once these are set, you can add rows and your label for each of your sub-questions that requires a numerical or text response.

For more details, you can see the video below.