Calculating check digits: Modulo 47
This is a description of calculating check digits according to Modulo 47. ActiveBarcode calculates this check digits for most codes automatically.

Calculating a check digit according to Modulo 47: Modulo 47 is used by the barcode symbology Code 93. Here is an example of how to calculate the check digit according to Modulo 47: *The reference numbers of Code 93 are: 00 0 01 1 02 2 03 3 04 4 05 5 06 6 07 7 08 8 09 9 10 A 11 B 12 C 13 D 14 E 15 F 16 G 17 H 18 I 19 J 20 K 21 L 22 M 23 N 24 O 25 P 26 Q 27 R 28 S 29 T 30 U 31 V 32 W 33 X 34 Y 35 Z 36 - 37 . 38 Space 39 $ 40 / 41 + 42 % 43 ($) 44 (%) 45 (/) 46 (+) - * Start/Stop