Note: If you need a daily price for Extra Person, but do not want to charge for Children, then set the Extra Child price to the -negative value of the Extra Person price.
i.e. 2 people booking a daily price set for two people will receive the 2 person price, the people will receive the 3 person price, 2 people + 1 child with receive the price for 2 people (3 person price - child price)