\( C=p r n \) is formula for calculating tota

The formula \( C = p \cdot r \cdot n \) is often used in finance to calculate the total cost (or total interest) in certain contexts, where: - \( C \) is the total cost or total interest. - \( p \) is the principal amount (the initial amount of money). - \( r \) is the rate of interest (expressed as a decimal). - \( n \) is the number of time periods (such as years, months, etc.). This formula is typically used in the context of simple interest calculations. In this case, the total interest earned or paid over a period of time is directly proportional to the principal, the interest rate, and the time period. If you have a specific context or application in mind, please provide more details!