To change the P&L report calculation on item wise P&L report, please follow the steps mentioned below,
Step 1: Please click on “Reports”.
Step 2: Under Profit & Loss(PL) reports, click on “Item-wise P&L reports” >> Click on report settings icon >> Under Profit Loss calculation, please select the desired option to calculate the P&L report.
Purchase price at sale: Calculates the P&L report according to the purchase price given at the time of creating the purchase invoice.
Current Purchase price: Calculates the P&L report according to the purchase price given in product and services section.