Monster DAR is what is included in the drop table rates. The Individual Dropstyle DAR multiplier based on number of players in the group (1p 100%, 2p 93%, 3p 90%, 4p 88%) is something different. For example, Red Sword has a base drop rate of 1/315 on all of its drop sources. The 1/572, 1/900, and 1/2100 rates on the chart are a result of the DAR of those monsters being included (Nano Dragon 55%, Govulmer 35%, Melqueek 15%).