Happy Halloween loyal weekly exercise participants, here is an exercise I hope does not scare you too much. Hopefully is a treat and not a trick. The link to last week’s challenge is HERE.

Use case: An Alteryx subscriber needs to build a process to validate VIN numbers to test for data quality issues across the fleet data. The algorithm is provided at the below wiki link.
http://en.wikipedia.org/wiki/Vehicle_identification_number
Objective: Please take the VIN numbers from the Input and create a new column for the check digit. Compare the check digit with the calculated check digit value. If the two values do not match (and there was no error in the calculation), then there is a mistake in the VIN. Out of the six VINs, how many vehicles have invalid codes?