Step 1: Identify the concept being tested.
The case is about the factors that determine the price of a product, and here it is Product Cost, one of the factors affecting Nat-Ayur's pricing of its new herbal face cream.
Step 2: Explain the concept.
Product cost is treated as the floor or minimum price of a product, since a firm cannot keep selling below its cost of production, packaging, distribution and selling for very long without running into losses.
Step 3: Apply the concept to the facts of the case.
Nat-Ayur worked out that producing, packaging, distributing and selling each tube of the herbal face cream cost ₹60, and the company decided this would be the minimum price it must charge just to cover that cost, before adding any profit margin on top.
Step 4: Final answer.
The factor identified is Product Cost. Since the total cost per tube came to ₹60, Nat-Ayur treated this as the floor price, the lowest price at which it could sell the cream while still covering its costs, and priced above this to also earn a fair profit.