Stock Reconciliation to correct valuation rate

Newbie here, so I apologize.

We just started using erp in January and, out of ignorance, entered some stock with the incorrect valuation rate, which is throwing my Finished Goods way off. We have gone back and canceled and
amended as many as we can manually, but some have Sales Invoices and other inventory adjustments attached that make it extremely complicated and time-consuming to correct.

I have read some articles here that say I can correct valuation rates with a Stock Reconciliation, but none of them give me details as to how that looks or works.

For example, We entered 6446 pcs at $0.83 each but the valuation should have been at $0.092.

How do I use the Stock Reconciliation function to correct my Stock Ledger?

Please refer here: Stock Reconciliation