Some warnings and precautions to be aware of with levofloxacin include the following: 1  Levofloxacin can cause severe allergic reactions. 2  Seek immediate medical attention if you develop any signs of an allergic reaction, such as a rash or hives, itching, swelling of the lips or throat, wheezing, or difficulty breathing.
How your monthly interest charge is calculated. Interest charges are calculated on a monthly basis. Since months vary in length, most credit card issuers use a Daily Periodic Rate (DPR) to calculate interest charges. The DPR is calculated by dividing the APR by 365.ow your monthly interest charge is calculated. Interest charges are calculated on a monthly basis. Since months vary in length, most credit card issuers use a Daily Periodic Rate (DPR) to calculate interest charges. The DPR is calculated by dividing the APR by 365.
Calculate Daily Periodic Rates (DPR). Credit card companies usually calculate interest charges on a monthly basis. Because months vary in length â e.g., January is 31 days and February is 28 days â most companies use DPRs to calculate interest. To calculate your DPR, divide your annual APR by 365 (the number of days in one year).