Table 5 Rate of change of demand satisfaction.

From: Optimization of a two-stage emergency logistics system considering public psychological risk perception under earthquake disaster

Percentage of total supply

Demand satisfaction function value

Rate of change of demand satisfaction

0.55

63.66%

10.72%

8.23%

2.74%

0.65

74.38%

0.75

82.61%

0.85

85.35%

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