I believe the dry matter is taking the percent protein listed and dividing it by 100 minus the moisture. So for the Beauty can it'd be 7.5 divided by (100 - 78.5) which is about .35 or 35%. The dry matter value for the protein in RC YT 28 kibble is around 31%. Hopefully I got that all right! Dog Food Advisor has a handy article to explain the conversions. |