Percentages Don't Add Up to 100%
Due to rounding, percentages may not always appear to add up to 100%. You can control how many decimal points to display when you customize a chart or data table.
Response Percentages Exceed 100%
For questions that use checkboxes, the total number of answer choices selected for a question can be greater than the number of respondents that answered the question. This can cause the total response percentages to exceed 100%.