Answer :
A jacket with an original cost of $82 is on sale. The cost of the deal is $74.50. The percentage change does the discount represent is 9%.
Percentage change = (amount of increase or decrease) / original amount
= original amount-new amount/ original amount
= (82.74.50)/82
=7.5/82
≈0.09
=9%
What is percentage change?
A quantity's percentage change is equal to the ratio of the difference between the quantity's current value and its starting value multiplied by 100. When a quantity's ultimate value is determined by increasing or decreasing a percentage of its original value, there is always a change in the quantity's percentage change (or percent change).
The difference that results from subtracting the old value from the new value, dividing by the old value, and multiplying the result by the old value is the percentage change. Typically, we multiply a fraction by 100 to create a percent.
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