How to find the percent of decrease

Practice Questions

SAT Math › How to find the percent of decrease

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1

The cost of a shirt in January is dollars. In February, the cost is decreased by 10%. In March, the cost is decreased by another 10%. By what percentage did the shirt decrease in total between January and March?

2

If a rectangle's length decreases by fifteen percent, and its width decreases by twenty percent, then by what percent does the rectangle's area decrease?

3

In his most recent film, it was estimated that Joaquin Phoenix was paid of the budget. In his next roll, he is expected to make less. How much money should Joaquin expect to make for his next film?

4

At a certain store, prices for all items were assigned in January. Each month after that, the price was 20% less than the price the previous month. If the price of an item was x dollars in January, approximately what was the price in dollars of the item in June?

5

The sale of a tablet decreased from $500 to $450. By what percentage did the cost decrease?

6

On Monday, the price of a shirt costs x dollars. On Tuesday, the manager puts the shirt on sale for 10% off Monday's price. On Wednesday, the manager increases the price of the shirt by 10% of Tuesday's price. Describe the change in price from Monday to Wednesday.

7

If the length of a rectangle is increased by thirty percent, which of the following most closely approximates the percent by which the rectangle's width must decrease, so that the area of the rectangle remains unchanged?

8

If the price of a TV was decreased from $3,000 to $1,800, by what percent was the price decreased?

9

The cost of a load of laundry is reduced by 35%. The cost is then reduced 2 weeks later by another 25%. What is the overall reduction?

10

The cost of a hat increases by 15% and then decreases by 35%. After the two price changes, the new price of the hat is what percent of the original?

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