>>128366498
It depends on the idol and the agency and the context of where they are discussing the debt.
If asked in an informal context they will often say it a huge number. This normally is inflated and includes everything required to debut a group, so it is not accurate.
In a formal context (court), idols who have been sued to pay back their debt have needed to pay about $10k.
Agencies use a form of Hollywood accounting to avoid paying idols profits.
