Ashley Grupe's monthly student-loan payments have been $54 for the past three years. This fall, they'll likely surge to $644. "When I saw that number, I just froze," the 34-year-old told Business Insider. "That's 'I need a second job' kind of money." Grupe's payments are skyrocketing after former President Joe Biden's SAVE student-loan repayment plan was eliminated last month. Dozens of student-loan borrowers told Business Insider they're worried that, with SAVE gone, they won't be able to