Looking for application which will provide to determine project database growth and cost per day or month
You can use a third party tool Idera Diagnostic Manager to identify the growth and cost. There is a report inbuilt which forecast database and table growth depending upon how much historical data it has.
You can also set up this with the help of combination of TSQL + Powershell as described Database Space Capacity Planning by chad. It will help you in analyzing the database growth.
You can also see the Brent Ozar's answer on this as a solution as well


Estimate projected database growth