CS50 Pset6: cash.py not returning number of coins used for change

Question

Below is my code for pset6 of CS50, in which the user is prompted for an amount of change in the form of a float, which is converted into cents (e.g. 1.25->125), and the fewest coins needed to make change are determined and returned. When I run it, "Change owed: " works, but after a value is inputted nothing happens and the code doesn't end, there's just a blank line... I can't figure out what I'm doing wrong.

from cs50 import get_float

#prompt user for change owed
while True:
    x = get_float("Change owed: ")
    if x >= 0:
        break

#convert to only cents
x = round(x * 100)

count = 0

#always use largest coin possible (quarter->dimes->nickels->pennies), keep track of coins used
while x >= 0:
    if x >= 25:
        x -= 25
        count += 1
    elif x >= 10:
        x -= 10
        count += 1
    elif x >= 5:
        x -= 5
        count += 1
    elif x >= 1:
        x -= 1
        count += 1

#print number of coins used
print(count)

Answer 1

I realized it was because my while condition was while x >= 0 when it should have just been while x > 0. Feel dumb.