P8–2 Return calculations For each of the investments shown in the following table, calculate the rate of return earned over the unspecified time period.

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Investment Cash flow during period End-of- Beginning-of- period value period value A -$ 800 $ 1,100 $ 100 B 15,000 120,000 118,000 C 7,000 45,000 48,000 D 80 600 500 E 1,500 12,500 12,400