Odoo 17: Enterprise & Community (we tried in Both)

We have a Groceries  store in India. We have a common issue related to Products Prices. Here is an Example:

On January 1, 2023 we bought 100 units Surf Excel Detergent Powder (Pack of 1 kg) from Vendor A having its Maximum Retail Price: 130.00 at a standard company Rate Calculated as (MRP/1.08) at a discounted price of 2% i.e. (130/1.08=120.37 - 2% = 117.96 (i.e. its purchase Price ). 117.96 x 100 Units: = 11796.00 total Bill prices.

We sell this Item  with a formula of MRP - 1.05 % i.e. 130 - 1.95 = 128.05.

Here comes the Actual Problem.

in Next 10 days we sold 80 Units and started to replenish Inventory.

We placed order for 100 quantity to the same Vendor A.

Vendor Sent same product Surf Excel Detergent Powder (Pack of 1 kg), Same Barcode but with new MRP of 135. and as per same formula of computation: (i.e. 135/1.08 - 2% = 122.5 x 100 Units= 12250.00

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Now our inventory has : 20 Units of MRP 130 and 100 Units of MRP 135

How do we Handle this situation in Odoo. 

Is there anyway we can manage One Item with different Prices and select there MRP during POS Sale? Please note that Same Vendor (for Supply), Same customer, Same Product even same barcode.

We studied lots of Pricing options such as Multiple Price list. But these price lists deal with Quantity based discount or customer Category based pricing.