<prompt> Human: Regular APR on new transactions 10.00 Prime 6.75This is my credit card with the lowest APR, and thinking about increasing my credit limit. Could someone explain what on new transactions mean... why would they put that in there? what is the APR for old transaction then?Also, what does the Prime 6.75 mean?I need to make a large purchase which I expect to pay within a year.Thanks  <response>: Prime Rate is an industry standard interest rate that varies. Apparently right now it is around 3.25. So Prime plus 6.75 10Since it varies, old transactions may have a slightly different APR.In general it is extremely bad to make purchases on credit cards that you cannot afford to pay in full. It is a very slippery slope into eternal debt. Can you put off the purchase and save up for it? 