# For each transaction, compute expected_total as quantity * price (from products)

Canonical URL: <https://datadriven.io/problems/for-each-transaction-compute-expectedtotal-as-quantity-p-8dafd389>

Domain: SQL · Difficulty: medium

## Problem

For each transaction, compute expected_total as quantity * price (from products). Return transaction_id, quantity, total_amount, expected_total where total_amount <> expected_total. Order by transaction_id.

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