Confusingly, the prices are in cents, not dollars. The upstream problem specification indicates that floats should not be used and a language-appropriate fixed point format should be used instead. I'm not aware of any built-in support so using an integer representation of price as cents is the way we went.

Thanks for the explanation. Should we change the dollars in instruction to cents, or just leave it as it is?

We are not going to change the instructions, what can be done is an append.

Append as in mentioning the specs use cent instead of dollar at the end of instructions?

Using an append file, e.g: https://github.com/exercism/crystal/blob/main/exercises/practice/roman-numerals/.docs/instructions.append.md

Ah, didn't know such file exists. If we were to add an append file, mind if I open a PR for that?

Sure go ahead, sorry for being slow to respond.