How to calculate a simple rate of return

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bobbo7410
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I'm reading an example in the book, and I simply can't wrap my mind around it...

It's claiming you invest $1000 and get back $150 per year for 5 years. At the end of 5 years the salvage value is $1000 (if that matters).

It claims the Rate of Return is 15%, yet for the life of me I can't figure out where they got that 15%...
 
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They mean 15% a year, not overall.
 
JonF said:
They mean 15% a year, not overall.

I thought that originally... yet the next one shows investing $2000, and $150 year for 6 years (salvage value of 2700). The rate of return is shown at 11.8%, which throws off my initial logic... hence my confusion.

I'm not sure how to implement the salvage value, etc.
 
bobbo7410 said:
I thought that originally... yet the next one shows investing $2000, and $150 year for 6 years (salvage value of 2700). The rate of return is shown at 11.8%, which throws off my initial logic... hence my confusion.

You get 7.5% per year, but you also turn $2000 into $2700 over 6 years, which is itself something like a 5% yearly return.