Calculating a 19.99% APR on a Balance of $391.00

If you have a 19.99% APR (Annual Percentage Rate) on a balance of $391.00 then you will be spending $0.21 per day, $6.42 per month, and $78.16 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 $