50% Off $9.99 — You Pay $5.00
50% of $9.99 is $5.00, so the price drops from $9.99 to $5.00. Below are the same figure with sales tax added, what happens if a second discount stacks on top, and the full tier table for this price so you can compare without retyping it.
The arithmetic, line by line
| Step | Calculation | Result |
|---|---|---|
| Discount rate as a decimal | 50 ÷ 100 | 0.50 |
| Discount amount | $9.99 × 0.50 | $5.00 |
| Final price | $9.99 − $5.00 | $5.00 |
| Price paid, share of original | $5.00 ÷ $9.99 × 100 | 50% |
On the price ladder $9.99 is entry 2 of 18, sitting $5.00 above $4.99 and $5.00 below $14.99. The same 50% label saves $2.50 on $4.99 against $5.00 here, so the percentage is identical and the money is not — the shelf label tells you the rate, never the amount.
With sales tax on top
Tax is charged on the discounted amount, so the rate applies to $5.00 rather than $9.99.
| Tax rate | You pay | Tax portion |
|---|---|---|
| 5% | $5.24 | $0.25 |
| 6% | $5.29 | $0.30 |
| 7% | $5.34 | $0.35 |
| 8% | $5.39 | $0.40 |
| 9% | $5.44 | $0.45 |
| 10% | $5.49 | $0.50 |
If a second discount stacks
"Take an extra 20% off sale prices" is a second cut on the already-reduced price, not on the original. That is why the totals below do not add up to 60% or 70%.
| Second discount | Price after 50% | After the extra cut | Combined |
|---|---|---|---|
| Extra 10% off | $5.00 | $4.50 | 55% total |
| Extra 20% off | $5.00 | $4.00 | 60% total |
Every discount on $9.99
| Off | You pay | You save |
|---|---|---|
| 10% | $8.99 | $1.00 |
| 15% | $8.49 | $1.50 |
| 20% | $7.99 | $2.00 |
| 25% | $7.49 | $2.50 |
| 30% | $6.99 | $3.00 |
| 40% | $5.99 | $4.00 |
| 50% | $5.00 | $5.00 |
| 60% | $4.00 | $5.99 |
| 70% | $3.00 | $6.99 |
| 75% | $2.50 | $7.49 |
50% off nearby prices
| Original price | Final price | Savings |
|---|---|---|
| $4.99 | $2.50 | $2.50 |
| $14.99 | $7.50 | $7.50 |
| $19.99 | $10.00 | $10.00 |
| $24.99 | $12.50 | $12.50 |
Frequently asked
What is 50% off $9.99?
$5.00. The discount is 50% of $9.99, which is $5.00, and that comes straight off the price: $9.99 − $5.00 = $5.00.
How much do I save at 50% off $9.99?
$5.00 on a $9.99 item, which is the 50% that comes off before the till total of $5.00. The share you still pay is 50%, and sales tax is charged on that smaller figure rather than on the original.
Is 50% off plus another 50% off the same as 100% off?
No. Stacked percentages multiply, so 50% then 50% is 75% off in total, not 100%. On $9.99 the first cut leaves $5.00, and a second 50% takes it to $2.50.
Does sales tax apply before or after the discount?
After, in every US state that taxes the sale. Tax is charged on what you actually pay, so at 8% you owe $5.39 on a $5.00 subtotal, not 8% of $9.99. There are exceptions for manufacturer coupons and mail-in rebates, but a shelf discount is applied first.