• MB is the monthly bill amount ($) • #D is the number of days used in the month To calculate a prorated bill, divide the monthly bill amount by 30.5, then multiply by the number of days used in the month. ## How to Calculate a Prorated Bill? The following example problems outline how to calculate Prorated Bill. Example Problem #1: 1. First, determine the monthly bill amount ($).
• The monthly bill amount ($) is given as: 700. 2. Next, determine the number of days used in the month. • The number of days used in the month is provided as: 10. 3. Finally, calculate the Prorated Bill using the equation above: PB = MB / 30.5 * #D The values given above are inserted into the equation below and the solution is calculated: PB = 700 / 30.5 * 10 = 229.508 ($)

Example Problem #2:

For this problem, the variables needed are provided below:

monthly bill amount (\$) = 800

number of days used in the month = 15

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer.

PB = MB / 30.5 * #D = ?