If you have a 9.99% APR (Annual Percentage Rate) on a balance of $644.11 then you will be spending $0.18 per day, $5.29 per month, and $64.35 per year on interest.
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| Balance | $ | |
| APR (%) | ||
| Days in Month | ||
| Days in Year | ||
| Interest Per Day | $ | |
| Interest Per Month | $ | |
| Interest Per Year | $ |