Question on MacroNutrient %

[JPGLA]

How does the Macronutrient % on Charge 3 app/website get calculated? I assume it adds up only the main MNs (Fat, Protein, Carbs) and then display each as a percentage of the total. However, when I look at the break down of grams of each, it shows the % to be incorrect. (You can only look at grams on the online dash...not available yet on the app).
Using the values of each MN expressed in grams in my summary for today:

       Carbs 112.9g Fat 55.77g Protein 110.7g
the percentages should read:

       Carbs 41%, Fat 20%, Protein 39%

instead of what the summary shows:

       Carbs 32%, Fat 36%, Protein 32%
What gives?

[JPGLA · Accepted solution]

Just saw this posed on another community post. Looks like this explains it. Having FitBit support confirm:
https://community.fitbit.com/t5/Fitbit-com-Dashboard/calculating-macros/m-p/2311424

[JPGLA]

I noticed that amount of grams i consumed for carbs, protein and fats did not match the percentages that the app displayed on my dashboard. I posted the issue in another forum and found the answer why. Fat is multiplied by a factor of 9 and carbs & protein by a factor of 4 for the dashboard % calculations. Fitbit should add messaging for this on the dashboard because it is confusing.
Check this thread for details:
https://community.fitbit.com/t5/Eat-Well/Question-on-MacroNutrient/m-p/3288244#M14145