Some manufacturers tell you, some don't. Briess lists the ingredients on their extracts, but not the percentages. Munton's IIRC does not list it at all. You have to check their websites. You hear/read unverifiable rumors from questionable sources from time to time, the bottom line is don't assume any specific makeup unless you get it from the manufacturer.
Stop using so much caramel malt. Your beer will thank you.
(yes, Carapils is a caramel malt...so is Special B)
pujwI HIq Mild Ale
KPA Khitomer Pale Ale