Table: b'z discography
Question: Which album had the largest increase in sales from its first week to its total sales?
Step 1 (Operation, Indexing): 1st week sales and copies sold
Step 2 (Reasoning, Arithmetic): -, copies sold and 1st week sales
Step 3 (Reasoning, Aggregating): MAX, difference between copies sold and 1st week sales
Step 4 (Operation, Indexing): album
Answer: loose