if a store is having a 20% off sale, and something is $126.40 after the discount, how much is the original price. i just need help with the formula..

if there's a 20% discount, it sells for 80% of its original price. so,

0.80 p = 126.40

To find the original price before the 20% discount, you can use the following formula:

Original Price = Discounted Price / (1 - Discount Percentage)

In this case, the discounted price is $126.40 and the discount percentage is 20%.

Let's plug in the values into the formula:

Original Price = $126.40 / (1 - 0.20)

To simplify the calculation, we can convert the 20% to decimal form by dividing it by 100:

Original Price = $126.40 / (1 - 0.20) = $126.40 / 0.80

Now, divide $126.40 by 0.80:

Original Price = $126.40 / 0.80 = $158

Therefore, the original price of the item is $158.