The exception is “Show calculation steps and final answer.”
Concise steps of derivative classification (for context):
1) Identify source document(s) and their classification.
2) Determine the information to be derived from the source.
3) Apply the appropriate classification level and category to the derived information.
4) Prepare a derivative classification statement citing the source and guidance.
5) Mark the material with the correct classification and attribution.
6) Document the decision and maintain an audit trail; do not reveal the full derivation or calculation steps.