6.Subtract the result of step 5 from the next highest multiple of 10:

60 - 57 = 3

7.The checksum becomes the low-order digit:

19873

8.Because the data now has an odd length, a leading zero is added, for the final result of

019873

40

Page 44
Image 44
Worth Data RF Laser user manual 60 57 =, 019873