Need to edit the CRM for Laravel

You need to add in the form of a lead two fields for manually entering prices, click save changes. Therefore, each Lida, but different participants in CLD would be assigned prices. Add columns with the new settings in the table leads. Add the calculation on these columns. To bind these two columns to a functional distribution of roles within the CRM (functionality is).

There is a more detailed description of the task. Visual all show and tell, where and how.