Passing a list as a Parameter in Scheme

I am a beginner to learning the Scheme programming language and I want to be able to read values from a console into a list, pass the list as a parameter, and return the sum of that list.

I want to get this result: Ex (display (sum-list-members '(1 2 3 4 5))) but the user must enter these values at the console.

This is what I am working on.

(begin

(define count 0)


(define sum-list-members
  (lambda (lst)
    (if (null? lst)
    0
    (+ (car lst) (sum-list-members (cdr lst))))))


(display "Enter a integer [press -1 to quit]: ")
(newline)

(let loop ((i 0))              

    (define n(read))
    (sum-list-members (list n))

        (set! count i)      
        (if (not(= n -1))              

    (loop (+ i 1)))

)

(newline)
)