Staad rcdc Calculation of Concrete Column Moment Capacity.

Hi  hello Good day, 

             I want to ask , regarding rcdc calculation in column design, where interaction is is drawn. In the tabulated

It is shown there the moment, resultant load angle, moment along y moment along x, the capacity ratio. The only thing i dont understand from there is,

How did rcdc calculate the moment capacity... I mark red the values in question  Thank you for your advise..