Purchase Recipes reflect on Cost of good sold

ERPNext Accounting
1

After submitting Sales/Tax Invoices, some or most of the Purchase Receipts reflect the Cost of good sold account

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this one of the Purchase Receipts,

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This effect take place only after entering the Sales/Tax invoices

I did a different iterations each with new items, purchase rescripts and Tax/Sales invoices, trying the following conditions:

  1. allow/denied negative stock value
  2. decreasing the presession format
  3. tried it on version 14 and version 15

Available options:
Periodical Inventory

Things could help:
What are the values that affects the Cost of good sold?