Calculate discounts & final price

Discount amount = original price × discount% ÷ 100. Then final price = original − discount. Example: 25% off ₹5,000 = ₹1,250 discount, final ₹3,750.

No. A 30% + 10% discount is NOT 40% off. It's 30% off first → ₹3,500 → then 10% off that → ₹3,150 (37% effective discount).

Reverse formula: original = final ÷ (1 − discount%/100). Example: final ₹3,750 at 25% off → original = ₹3,750 ÷ 0.75 = ₹5,000.

Markup = increase from cost to selling price (cost-based). Discount = reduction from listed price (sales-based). 50% markup ≠ 50% discount when reversed.

For unconditional discounts at the point of sale: GST is on the discounted price. For post-sale discounts: GST is on original. Always read the invoice carefully.

Depends on your need vs. the saving. Industry rule: anything above 15% off MRP is meaningful for branded goods. Below that, often just shelf-rotation pricing.

Mathematically no — that would mean negative price. Real-world: only via cashback or stacked offers that exceed item value (rare and usually a marketing gimmick).

Multiply (1 − each%/100). E.g., 30% + 10% + 5%: 0.7 × 0.9 × 0.95 = 0.5985 → 40.15% effective discount.