It is normal to customers that before they purchase products or services from business firms – first they would request quotations for the prices of particular products and services they needed. Customers are normally looking for good quality and with the lowest prices of products. So, they go from one company to another company to check them out and to compare products prices....

Commission or brokerage is percentage or an allowance that a person gets for doing his business. It may be related to selling or buying of goods etc. This article mainly focuses on how to calculate commission rate....

What is needed here is your interest to learn. The elementary banking problems concern deposits and withdrawals; these require the operations of addition and subtraction. A person may arrange with the bank to have either a savings account or a checking account. Banks have different specific rules regarding the opening of accounts. ...

Ordinary interest is calculated on the basis of a 360-day year or a 30-day month; exact interest is calculated on a 365-day year. The interest formulas for both ordinary and exact interest are actually the same, with time slightly differing when given as number of days....