Investopedia defines '''rate of return''' as "The gain or loss on an investment over a specified period, expressed as a percentage increase over the initial investment cost. Gains on investments are considered to be any income received from the security plus realized capital gains.[http://www.investopedia.com/terms/r/rateofreturn]
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[[Investopedia]] defines '''rate of return''' as "The [[profit|gain]] or loss on an [[investment]] over a specified period, expressed as a percentage increase over the initial investment cost. Gains on investments are considered to be any [[income]] received from the [[security]] plus realized [[capital gains]]."[http://www.investopedia.com/terms/r/rateofreturn]