Ok - here we go.
You have currently got total calories set at 1800.
You want carbs at 20g - which is 4.4%
The rest of the calculation goes like this:
1. In mfp, you can use the guided process to set the total calories assuming you want to lose x per week or set your own calorie target.
Hope that helps - will email you the spreadsheet I just put together for playing with.....
Afternoon all
Felt hungry at about 9pm but didn't have much for dinner, so glugged some water, and then treated myself to an atkins bar