Correct Answer - Option 3 : 22%

__Solution:__

Marked price = Rs. 1150

Selling price after discount = Rs. 897

__Formula used:__

Discount % = (Discount/Marked Price) × 100

__Calculation:__

Discount = Marked Price - Selling price

= 1150 - 897

= Rs. 253

∴ Discount% = (Discount/Marked Price) × 100

= (253/1150) × 100

= 22%