Some Basic Assumptions for Financial Calculations.

1 Year = 360 Days.
1 Year = 52 Weeks.
1 Year = 4 Quarter (Each 3 months makes a Quarter).
1 Year = 12 Months.

For Interest Disbursements Calculation:-
10% interest means the interest of BDT 100 is BDT 10 for One year.
Yearly means one time in a year.
Semi annual means two times in a Year.
Quarterly means four times in a year.