interest rate? assuming this is cash advance credit rates for short term loan? so the loan is specifically designed for cos with low cash position heading into a fundraise?
It sounds like I have to return the $100k, plus some percentage of equity (in lieu of interest). If so, this sounds like an option for angels to take a position in a YC-backed company, and it would be friendly towards founders to label this product as equity financing and describe how the equity percentage is calculated.