Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

Snowball debt or pay off a large amount?
You've already received good advice here, pay off the highest rate card first, in this case the Best Buy card. I completely agree. To answer your question about the minimum payment, I can't guarantee that this is how Citi does it on your particular card, but several online calculators seem to use the following formula. Minimum Payment = Fees + (APR / 12) x Balance + 1% x Balance. I plugged in your numbers and got really close to the minimum payment you mentioned. I ran calculations for balances of 8,500 and 6,500 and got payments of $184 and $141. You can use this calculator to plug in some numbers for yourself. I found the formula on this page along with a reference stating that Citi uses the formula. Edited to Add: As Bruce Alderman mentioned in his answer, it's probably not a good idea to just pay the minimum. That calculator I linked to shows the difference between paying the minimum and even a small amount ($50 or so) more than the minimum every month. Something like the difference between 3 and 10 years.