Thread: Baryonic, Dark Matter/ Energy Proportions Calculations?

Can any one point me in the direction of well written and easy to follow calculations, that show EXACTLY how the:

Baryonic Matter 4.6%
Dark Matter 22%
Dark Energy 73%

percentages are formed. Bearing in mind 'simple' does not include me having to wade through Friedmann density calculations, and does include that bit after the
'LKP relic density' diagrams, that tells me what I actually want to know!

Hmmm...the maths is pretty complex!