There are two possible causes for this:
- By default, Carb Manager rounds numbers to the nearest whole number, but adds numbers prior to rounding. This can cause the sum of the rounded values and the listed totals to be off by 1. To turn off rounding, go to Settings and activate (turn on) the Show Decimal Values option. Learn more here.
- If you have activated (turned on) the Settings > Deduct Calories When I Exercise or the Settings > Deduct Macros When I Exercise options, the app will add negative values for calories and/or macros when you log exercise manually or with a fitness tracker. These negative values are deducted from your totals. Learn more here.