Create question in Google Form where all answer options calculate to 100%

Question

I have this question in a survey I'm trying to build a percentage accumulation like so:

Put the % of how much you spend of your salary in the following categories: [Food, Transport, Health, ...., Other]

I want to format the question in Google Forms such that:

1. For each category, the user can input/select a value between 0%-100%
2. It should validate that the accumulation of the percentages is 100%

I tried Google Forms first, but I was unsuccessful. Any suggestions to do it using Google Forms?

Answer 1

Short answer

At this time, this is not possible with Google Forms.

Explanation

Google Forms doesn't have a question that allows multiple numeric answers and the answer validation only could be set for the related question, not for multiple questions at once.

New Google Forms question types:

• Multiple choice
• Checkbox
• Short answer
• Paragraph
• Dropdown : Respondents choose an answer from a menu that drops down
• Linear scale : Respondents rank something along a scale of numbers
• Multiple choice grid : Respondents choose points on a grid

Old Google Forms question types

• Text: Respondents provide short answers
• Paragraph text: Respondents provide longer answers
• Multiple choice: Respondents select one option from among several
• Checkboxes: Respondents select as many options as they'd like
• Choose from a list: Respondents select one option from a dropdown menu
• Scale: Respondents rank something along a scale of numbers (e.g., from 1 to 5)
• Grid: Respondents select a point from a two-dimensional grid
• Date: Respondents use a calendar picker to enter a date
• Time: Respondents select a time (either a time of day or a duration of time)

References

• Add and edit questions, headers, images, videos, and page breaks - Google Docs editors Help
• Validate answers in your form - Google Docs editors Help