Why am I paying more interest this month than last ?

[upsidedownboyyouturnmee]

Opened my first ever credit card and last month My balance was £568.86 and I paid £10.29 interest
Now this month my balance was £512.13 and the interest is £12.85
Why am I paying more interest this month when the balance is less?
I'm paying the full thing off this month but just wondering why the interest is more

The Bank of England base rate went up last month. It was all over the news.

It could also be that the first month wasn't a full month.

Also that the interest is calculated on the average daily balance, so if in the first month, you built up to the £568 spend in stages over a few days, it would be less than if your balance was the whole £512 for a full month.

The BOE base rate went up by a tiny amount that is probably inconsequential within a 30% pa credit card interest rate, which is often not linked to the base rate anyway.

Rate change. Plus I'm pretty sure interest is calculated from the date of purchase, not the balance

Oh I see Thankyou
It's my first card and didn't have a clue.

For God's sake pay it off!