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An object in the sky brightens suddenly, but shows no hydrogen lines in its spectrum. It ismost likely a(n) :
Percent Change
A mathematical calculation that shows how much something has increased or decreased in value or quantity over time, expressed as a percentage.
Base Year
A reference year used for comparative financial analysis, serving as a benchmark for evaluating changes over time.
Sales
The activities involved in selling goods or services in return for money or other compensation.
Trend Percentages
An analytical tool used to examine changes in financial statements items over various periods, expressing each item as a percentage of its value in the base year.
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