I would be very surprised if I have reached £100 on DD and would actually expect it to be closer to £50. I haven't added it all but I have bought second hand, small items to support a local independent toy store, and then some bits from poundland/primark for stocking. She doesnt have 2 sets of grandparents and we don't see most of our wider families so doesnt get the masses of family gifts others refer to.
I havent spent anything on my DH or my sister. We all agreed that we wouldnt bother. None of us need anything and it's a bit pointless. DH and I usually treat eachother during the year when the opportunity presents instead or on birthdays.
I will likely spend about £70-£100 when finished on SIL as she is on her own, doesnt see any other family, and is very generous with us, our daughter and my family.
I have spent about £100 on parents and about £35 on my Nan.
I would guess around £30 per child on my nieces and nephews by the time I am done.
I have spend around £50 on my SD and £30 on her partner.
For Christmas food, we usually go to family and contribute alcohol. This year we are contributing to the food as going away for longer so we are sharing costs but not sure what those will be yet. I would be surprised if more than about £50.
It's the Christmas based experiences that add up for us which I don't keep track off. All the craft fayres, fetes and childrens activity days in surrounding villages where you're spending £5 here £10 there. Also we do a panto which is about £50 and are going on some activities when away. That will likely all add up to more than I would spend on my DD but I prefer memory making to gifts.
For context, as it is all relative, I am higher rate tax payer.