If a discount of 10% is allowed on the marked price of an article, a shopkeeper gets a profit of 25%. If he offers a discount of 25% on the marked price of the same article, then his percentage profit/loss will be:

$4\frac{1}{6}\%$ profit

Discount₁ = 10%

Discount ₂ = 25%

Let MP = 100.

SP of the article = 100 × 90% = 90

CP of the article = 90 × $\frac{4}{5}$  = 72

New SP of the article = 100 × $\frac{3}{4}$  = 75

Profit percentage = $\frac{(75 – 72) × 100}{72}$ = $4\frac{1}{6}\%$