Good and easy to use, so you can define this template to create a marketing plan with an investment budget. It specifies the categories in a detailed way, contains a box for the estimated cost for each item, plus subtotals for each of the categories and of course a grand total.
This Gantt chart template is made with Excel, you can download it for free. You can edit the information in a simple and easy way, add any kind of notes and dates about the project you are planning to do. All this then appears automatically in the Gantt chart.