Typical mass-to-light ratios for galaxies range from 2 to 10  while on the largest scales, the mass to light ratio of the observable universe is approximately 100 , in concordance with the current best fit cosmological model.
The typical mass-to-light ratio for galaxies is between 2 and 10, whereas on the largest scale, the mass-to-light ratio of the observable universe is about 100, matching the best fit cosmological model.