Technical question

[salvettileonardo]

Hi all, I'm doing quantitative research on RMM's lending data for a fund exploring a potential investment vehicle around tokenized real estate credit, and I've run into a question about the Repay event data.

When I sum Borrow amounts minus Repay amounts per user from the subgraph, the cumulative total goes slightly negative for a large share of users the moment they fully close out a position — typically by 3-7% of their peak debt. My working assumption is that the "amount" field on Repay includes accrued variable interest and isn't scaled back to pure principal via the variableBorrowIndex, so a full repayment naturally looks larger than the sum of the original borrows.

Could someone confirm: (1) does the Repay event's amount include accrued interest, or is it principal only, and (2) if it includes interest, is there a recommended way to recover the pure principal repaid (e.g. dividing by variableBorrowIndex at that block, or a specific field/entity in the subgraph that already separates the two)? Any pointers to docs or a specific person who'd know would be great. Thanks!