Obviously not Coach but, I think you should plainly omit the peri-workout carbs to have a lower calorie intake on off-days when your goal is fat loss. If carbs help you sleep, then have some carbohydrate intake in the evening.
Don’t be surprised if you end up with a macro-split that day that’s 10-20% carbs, ~30% fat and the rest being protein. Your calories, in relation to your bodyweight for that day, will also be a lesser factor than on the other days.
Now, if you already know what your maintenance is you can cycle your calories. So, let’s say that maintenance is
And you weigh 190 lbs (roughly x14 lbs) and you want a deficit of 3500 calories weekly.
You’re could accomplish that by flat-out taking 500 calories out of every day or take more out of your rest days so you can have more nutrients and fuel on your training days.
Starting at 2700 and applying a 500 calorie deficit (7x500=3500) means that at 190 lbs you’d have to have a daily average intake of ~11.6x lbs
11.6 x 190 = 2204
But that means on average your daily intake should be that much. If you have four training days, and three rest days, you want to find a solution for
4A x 190 + 3B x 190 = 7 x 2200 = 15400
B≈27.0175 - 1.33333 A
So, if we want to have A=13.5 which yields 13.5 x 190 = 2565 calories on a training day that leaves ~9 x 190 = 1710 calories for rest days.
4 x 13.5 x 190 + 3 x 9 x 190 = 15390
This might seem like a lot of math but if you just flat-out neglect carb intake on rest days you’ll be in a decent ball-park more often than not. In my experience.