A larger total reward is shared between party members.
For parties of two through eight, the historical bonus to total monster XP is respectively 30%, 39%, 50%, 54%, 58%, 63% and 67%. This increases the pool to distribute; it is not the full solo reward plus that bonus for every member. Eligibility and distribution still matter.
Suppose an eligible monster contributes 1,000 XP before the party bonus. A two-member party’s 30% bonus creates a 1,300 XP pool. If an example assumes equal eligible shares, that is 650 each, not 1,300 each. Equal sharing is an illustration, not a verified distribution formula. Compare groups by how much suitable hunting they complete over time as well as the reward pool per kill.