Question Video: Finding the Percentage Discount | Nagwa Question Video: Finding the Percentage Discount | Nagwa

# Question Video: Finding the Percentage Discount

A train ticket costs \$39 if you buy it on the day that you travel. If you buy it before the day, it only costs \$30. Find the percentage discount for buying early (to nearest percent).

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### Video Transcript

A train ticket costs thirty-nine dollars if you buy it on the day that you travel. If you buy it before that day, then it’ll only cost thirty dollars. Find the percentage discount for buying early to the nearest percent.

So we’re looking for the percentage discount for buying early. So the original price is thirty-nine dollars. And if we get the discount price, we’re only paying thirty dollars. So I’m going from thirty-nine dollars down to thirty dollars, that’s a saving of nine dollars. So the proportion of the full price that we saved is minus nine over thirty-nine. And if we want to scale that proportion up to a percentage, we need to multiply by a hundred. And when we tap that into our calculator, we get minus twenty-three point O seven six nine two three and so on and so on and so on. So to the nearest whole percentage, that’s twenty-three percent saving. Now the fact that it’s a negative number means that the cost reduced. It means we got a saving or a discount. So my answer is we had a twenty-three percent discount to the nearest one percent.

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