You can give both kibble and raw and if you are unsure of swapping it isn't a bad way to gain confidence. Remember not to feed kibble and raw at the same time though as it is digested by different enzymes and may confuse the tummy.
The downside of mixing is you kind of have the worst of both worlds, don't fully see the benefit of raw feeding but till you are confident you do have the reassurance of knowing your dog is getting a balance in their diet.
I was given a guide that an adult dog should receive approx 3% of its body weight per day. Now the ratio of raw meaty bones to meat was given as 60% of the diet to be made up of carcasses/wings/ribs and then 40% meat including offal once or twice a week. That for my guys is rather too much bone and bungs them up, I have played around with their quantities till they look right, are muscled and fit and my vet is happy to support me feeding this way.
Freddy 22kg 6 yr old active welshie male is fed 3 large chicken wings (or half a poussin or 2 big pork ribs) for breakfast and around 400g of meat for supper.
Chase 21kg 15 mth very active Brittany gets the same breakfast and 450g of meat for supper.
Mugi 18.6kg nearly 12 yr old Brittany male who remains active gets 2 large chicken wings for brekkie and 400g meat for supper.
Brice the deeriehound gets his rations too but I won't bother telling you how much as I hope Oliver doesn't weigh in at over 46kg

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Hope that helps a bit.