Compare unit prices
Compare package offers using the same weight, volume or item unit. Enter the complete promotional set rather than the price of just one package.
Understand the numbers · Make life easier
Discounted price
Find a sale price from a price multiplier, or work backwards from an actual item payment. The multiplier follows the Taiwan out-of-ten discount notation.
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Discounted price
2,400TWD
Entering 8 means paying 80% of the original price. Merchandise discounts exclude extra shipping.
Amount saved600 TWD
For a price that is 80% of the original, enter 8. This does not mean taking 80% off.
Method and scope
Sale price equals original price times the multiplier divided by 10. Reverse mode divides actual item payment by original price, then multiplies by 10.
A reverse multiplier above 10 means the payment exceeded the original price. It is not described as a saving.
Only one discount is applied. Coupons, cashback, shipping and successive discounts belong in the coupons and cashback tool; reverse mode requires an original price above zero.
What this helps you do
Find a sale price from a price multiplier, or work backwards from an actual item payment. The multiplier follows the Taiwan out-of-ten discount notation.
What to enter
Start with original price (twd), then fill the other relevant fields in the units shown. Available calculations are Find sale price from multiplier, Find multiplier from actual payment.
How the calculation works
Sale price equals original price times the multiplier divided by 10. Reverse mode divides actual item payment by original price, then multiplies by 10.
Worked example
Enter 8 for a price that is 80% of the original, which is 20% off. A TWD 500 item at that multiplier costs TWD 400.
Understanding the answer
A reverse multiplier above 10 means the payment exceeded the original price. It is not described as a saving.
Scope and limitations
Only one discount is applied. Coupons, cashback, shipping and successive discounts belong in the coupons and cashback tool; reverse mode requires an original price above zero.