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Answer: = 15.3296% decrease
How to Calculate Percentage Decrease
=> 539.22 - 456.56
=> 79.66
=> 79.66 ÷ 539.22
=> 0.153296
=> 0.153296 × 100
=> 15.3296%
If the percentage is negative, it means there was an increase and not an decrease.
Therefore, percentage decrease is 15.3%