How to Use This Calculator
- Enter original price (MRP) using the slider
- Set the primary discount percentage
- Add additional stacked discounts if any (coupon/bank offer)
- Set tax/GST rate (0 if already included)
- See final price and total savings instantly
Formula Used
After First Discount = Original Price x (1 - Discount%/100)
After Second Discount = After First x (1 - Additional%/100)
Final Price = After Discounts x (1 + Tax%/100)
Stacked discounts are applied sequentially, not added together. This is why 20% + 10% equals ~28% total, not 30%.
Key Insights
- Stacked discounts (50% + 50%) do NOT equal 100% off - you still pay 25%
- Compare final price across stores, not just discount percentages
- High discounts often apply to inflated base prices
- Bank offers stack on top of sale discounts for extra savings
Frequently Asked Questions
How do stacked discounts work?
When discounts are stacked (e.g., 20% sale + 10% coupon), they are applied sequentially. First, 20% is removed from the original price. Then, 10% is removed from the reduced price. This results in approximately 28% total discount, not 30%.
When is GST applied?
GST is typically applied after all discounts. The taxable value is the discounted price, not the MRP. Set tax to 0 if the price already includes GST.
How to maximize savings during sales?
Stack discounts strategically: Apply sale discounts first, then use bank card offers (usually 10-15%), and finally apply coupon codes.