Table: melville , saskatchewan
Question: What percentage of radio stations in Melville are owned by Harvard Broadcasting
Step 1 (Operation, Indexing): owner
Step 2 (Operation, Grouping): owner
Step 3 (Reasoning, Aggregating): COUNT, owner equals to harvard broadcasting
Step 4 (Reasoning, Arithmetic): ratio, number of stations owned by Harvard Broadcasting divided by total number
Answer: 0.4