If I have a HELOC and I draw $135$K$,$ then I let my sister draw $70$K$,$ but I want to keep our payments separate, how would I calculate how much my payment would be and how much her payment would be$?$ Let's say the average daily balance has been paid down to $195,103\mathrm{.}35$ and the interest rate is $8\mathrm{.}75\%.$ The periodic daily rate is $0\mathrm{.}023907\%$ and it's from $08/16/2024$ to $09/15/2024.$ How could I separate our payments $-$ or rather is there a calculation I can use to compute how much is my payment and how much my sisters payment is$?$