Sales staff often are paid either on a straight commission or on a salary plus commission basis. This requires the staff to carefully record the amount of their sales. In addition, some sales staff are paid bonuses for exceeding targets. An increasing number of companies in the United States are extending such incentive bonuses to employees other than sales staff, to motivate greater productivity and better work quality. For example, Nucor Corporation, one of the largest steel producers in the United States, pays its steelworkers an hourly rate set at approximately 60% of the industry average, plus a bonus based on the tons of steel they produce and ship.