It takes Xiaofang 7 hours and Xiaoli 8 hours to input the same manuscript by computer. How much faster is Xiaofang's work efficiency than Xiaoli's?

Xiaofang records 1 / 7 copies per hour, Xiaoli records 1 / 8 copies per hour,
Xiaofang's speed is Xiaoli's (1 / 7) / (1 / 8) = 8 / 7
Therefore, the efficiency of Xiaofang is 1 / 7 ≈ 14.3% higher than that of Xiaoli

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