When analyzing multiple-select-type questions, by default the total is displayed as cumulative frequency.
The cumulative frequency defaults to total 100% as displayed below.
To see the total respondents who answered the question, you can do so by going to: Login >> Surveys >> Analytics >> Dashboard
Go to the particular question and click on the settings gear. On the popup, click on the Configure Reporting link. This will open the Configure Reporting pop-up. Here you can set the percentage calculation mode under the Customized Analytics/Computed Values.
Respondent - Answered the question
You can set your preferred percentage calculation mode under Organization settings and this will be applied to all new surveys you create.
Go to: Organization » Settings
On the settings popup, select the preferred percentage calculation mode and save.
This feature is available with the following licenses :