To solve the problem step by step, we will determine the missing percentage and validate the scenario described.

---

Step 1: Define variables and relationships

• Cost Price (CP): $Rs. 336$
• Marked Price (MP): Let the marked price be $x$.
• Discount Percentage (D%): Let the discount percentage be $d \%$.
• Selling Price (SP): The selling price is $CP + 7.5\% \text{ of } CP$.

---

Step 2: Calculate Selling Price (SP)

$SP = CP + 7.5\% \times CP = 336 + 0.075 \times 336 = 336 + 25.2 = Rs. 361.2$

---

Step 3: Relate SP, MP, and discount

The selling price is derived from the marked price after applying the discount: $SP = MP \times \left(1 - \frac{d}{100}\right)$ Substituting $SP = 361.2$: $361.2 = x \times \left(1 - \frac{d}{100}\right)$

---

Step 4: Relate discount with given condition

If the marked price is reduced by $Rs. 44$, the discount becomes $Rs. 391/3 = 130.33$. The new marked price is $x - 44$, so: $\text{Discount} = (x - 44) \times \frac{d}{100} = 130.33$

This gives: [ (x - 44) \times d = 13033