Preconditions (*)

1. Magento version 2.x (appears to have been present in all versions)
2. Magento 2.4-develop

Steps to reproduce (*)

1. Create a bundle product with a fixed price - e.g. $100
2. Apply a tier price discount for all websites and all customer groups of 10%
3. Run bin/magento indexer:reindex catalog_product_price

Expected result (*)

1. Final price (and min_price, max_price, tier_price) in catalog_product_index_price are set to 90 (100 - 10%)

Actual result (*)

1. Final price (and others) in catalog_product_index_price are set to 100

Additional Information

#30610 (comment)
I have debugged this issue locally, and it appears to be caused by this line:

This is getting the minimum value of catalog_product_entity_tier_price.value, but due to:

There is no fixed price option for bundle products in the advanced pricing modal. Instead, all values are percentage discounts, which populates the catalog_product_entity_tier_price.percentage_value column.
I have patched \Magento\Bundle\Model\ResourceModel\Indexer\Price.php locally to change MIN(tp.value) to MIN(tp.percentage_value), and I then saw the expected values populated in catalog_product_index_price.

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Please provide Severity assessment for the Issue as Reporter. This information will help during Confirmation and Issue triage processes.

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.