To calculate the percentage decrease:

1. First, find the difference between the two numbers. In this case, 120 - 90 = 30.

2. Next, divide the difference by the original number. So, 30 ÷ 120 = 0.25.

3. Finally, multiply the result by 100 to get the percentage. So, 0.25 x 100 = 25%.

Therefore, 120 has decreased by 25% to become 90.

Question

To calculate the percentage decrease:

1. First, find the difference between the two numbers. In this case, 120 - 90 = 30.

2. Next, divide the difference by the original number. So, 30 ÷ 120 = 0.25.

3. Finally, multiply the result by 100 to get the percentage. So, 0.25 x 100 = 25%.

Therefore, 120 has decreased by 25% to become 90.

Knowee AI · Accepted Answer

To calculate the percentage decrease:

1. First, find the difference between the two numbers. In this case, 120 - 90 = 30.

2. Next, divide the difference by the original number. So, 30 ÷ 120 = 0.25.

3. Finally, multiply the result by 100 to get the percentage. So, 0.25 x 100 = 25%.

Therefore, 120 has decreased by 25% to become 90.

If 120 decreases to 90, by what percentage has it decreased?