<prompt> Translate the following text to EnglishMfano wa curve hutegemea seti maalum ya vigezo kutumika kwa benchmark mfano, kama vile uwiano wa gharama za kudumu katika kiasi maalum per capita.  <response>: The exact shape of the curve depends on the specific set of parameters used to benchmark the model, such as the proportion of fixed costs at a specific per capita volume. 