How to compute the dry volume in concrete

From this construction video tutorial, one can learn how to workout the dry volume of concrete.

The particulars of dry volume of concrete contain the following:-
? PCC ? 52%
? Brickwork ? 32%
? UCR ? 42%

? Plastering (Joint) ? 30%
? Plastering (total volume)
? Flooring

The above records show the percentage of dry volume to be added with the each element.