Rate of return - Wikipedia
https://en.wikipedia.org/wiki/Rate_of_return
WEBThe return, or rate of return, depends on the currency of measurement. For example, suppose a US$10,000 (US dollar) cash deposit earns 2% interest over a year, so its value at the end of the year is US$10,200 including interest. The return over the year is 2%, measured in USD.
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