How do I get my parents to do their part in my college app process???

Thank you all! I ran the NPC for 3 schools I know I’m going to apply to, showed the result to both of them and asked if they’re sure they can pay it. I only got a “I doubt that’s accurate” and a “Don’t stress over it.”… Lol. Seems like it should be straightforward but it’s not. Grrr.