MH in Calculations

[waw555]

Why do I need a column in the calculation of MH
What function it performs?

In the rightmost column, you must add the name of the column DESCRIPTION

And to add the unit next to the number

[KatarzynaUlichnowska]

Hello,
regarding your question about a column with MH... That's the place where you enter man-hours that are required in order to provide a service (by default it will be available only in services) and then on their basis tasks in projects will be generated and will define the estimated time needed to complete a project.