Ours come in buckets Well there are cups too… Even I buy smaller ones now (325-450g) as we use way less nowadays.
IDK how people figure out things with such labels… Mine says 3.2g (the other - as I have 2 different sour cream now - 2.9g) carbs/sugar for 100g. Maybe it’s not so important for sour cream when one uses a little but still, I like to have proper info on my labels (while one of my few staple items has no such info but it’s fresh meat so at least I can know the carbs are very low… I just don’t know the fattiness).