Reverse Engineering a Payment System #4

I finaly figured out, where the amount of money is stored. I got it down to 8 bytes...but not further.. these 8 bytes even change if you put your card into the machine and buy nothing. i made a list of all data i have and which is displayable: keep in mind, some of these datapoints are equal, coz i copied them for testing purposes

59163.6.11    45c21cecb985221b
44045.0.37    43e75cec9b83fd3d
64998.0.20    45d34dec19bea017
59163.23.71   e5c618ecb9856a3b
40550.6.00    c7d549ecbb9c223b
40492.06.00   c7d249ecbb9c313b
06.00         c7e74decbb94783b
16.00         c7d14decbb9c2a0b
21.00         c7d349ecbb9c302b
06.00.2       c5810dec3a843233
06.00.3       45900dec3a847313
41952.06.00   47e64decbb9c613b
41952.06.00   47e249ecbb94293b
41952.06.00   47e04decbb94231b
41952.06.00   47e04decbb94231b
41952.06.00   47e64decbb9c613b
39482.06.00   c7d04cecbabc2a1b
0.30          c7d45dec98967b1f
06.00         45d249ecba843d33
11.50         455019ecbab62f06
14.75         c3e45dec1aa77d6b
17.75.2       43e05dec1aa5366a
02.75         c1e059ec1bbd275f
07.80         45504dec3a843612
14.40         c3e65dec1aa73f4b
12.30         2e78772e2e2a2e4b
17.75         43e05dec1aa5366a
11.90         45d609ec3a8c6d67
17.35         c3e259ec1aa57c4a
13.55         c3d659ec3bb5746e
11.80         c55449ec3a867406
14.35         43d019ec1b972d0b
13.15         c3c019ec3bbd360e
14.75         43d65dec1b9f676b
16.55         43d459ec3bbd674b
0.40          47b24dec3aa63f57
16.95         c3665dec3a853d0b
23.71         45c21cecb985221b
real26.11     e5c618ecb9856a3b
17.75         43e05dec1aa5366a
16.95.2       c3e419ec1aa57e2a

the format should hopefully be clear. if there are 4 numbers in front of the price, it is the cardnumber :) because the uid is not important you can ignore that....anybody ANY idea?