To calculate the basic "hand score" that is to be added or deducted, the scorer starts with a basic score of 25 points, then adds the absolute (non-negative) difference between the points earned by the taker and the threshold, and, if any, the ' bonus. This quantity is multiplied by the appropriate multiplier for the taker's bid level (see Bidding), and then two additional bonuses may be added if they apply; the ' or "handful" bonus, and the "" or slam bonus (see below for descriptions of bonuses). Thus, calculation of the hand score is expressed by the formula