How is option profit calculated?

Call option

There is no return if the settlement price at maturity or early exercise is less than or equal to the exercise price. If the settlement price is greater than the exercise price at maturity or early exercise, option return = order volume x (settlement price - exercise price).

Put option

There is no return if the settlement price at expiration or early exercise is greater than or equal to the exercise price. If the settlement price is less than the exercise price at maturity or early exercise, option return = order volume x (exercise price - settlement price).