I have an issue with Inventory Management feature, let me explain:

- We buy a product at Cost “C”

- This product is being sold to different end users at different prices P1, P2 and P3. 

Question#1: Should i enter this product cost and price in Inventory management tool as 3 different products where First entry Cost C Price P1, second entry Cost C Price P2 and 3rd entry Coat C Price P3?

Question#2: If the above assumption is correct,  what if the stock of C/P1 is finished, but i still have stock of 50 units of C/P2 entry (Basically it is the same product at the end but instead of selling it at P2 i need to sell it at P1) can i modify the 50 Pcs quantity of C/P2 to be 50 Pcs of C/P1? Will this be modified smoothly without affecting my Sales, COGS and Inventory Asset accounts?