Modify rules regarding fine

Below are the fine calculation methods currently available in the system. 

• Daily Percentage:  The system will charge a particular percentage of fine each day based on the due amount until the resident pays. For example, if 12% per annum is fine, then (12/365) * (Due Amount) will be charged every day until the system finds the receipt.
• Monthly Percentage: Same as a daily percentage, the fine will be charged every month instead of each day.
• Daily Fixed: The system will charge a particular amount every day until the resident pays. For example, if Rs.10 is the fixed amount for each day, then Rs.10 will be charged every day until the system finds the receipt.
• Monthly Fixed: Same as daily fixed, fine will be charged every month according to the fixed amount.
• One Time Percentage: The system will charge a particular percentage of the due amount only for one time if the resident hasn’t paid the dues.
• One Time Fixed:  The system will charge a particular amount on an invoice only for one time if the resident hasn’t paid the dues.