I am currently studying the research titled "Development and Validation of a Food and Nutrition Literacy Questionnaire for Chinese Adults (FNLQ-A)" . I would like to ask for clarification regarding the scoring method of the FNLQ-A. The article mentions that the total score is converted into a percentage with a maximum score of 100 points, but I am not entirely clear on how the individual item responses (some scored 1, 2, or 3 points) are specifically converted into the final total score. Could you kindly explain in more detail how the scoring and normalization of the questionnaire were conducted?

Thank you very much for your time and support.