Research Article
Structure Optimization of Safety Investment of Petrochemical Port Enterprises
Table 3
Optimal safety investments in 2016 and 2015 (unit: ten thousand).
| | Number | Items of safety investment | Optimum value | Investment in 2015 | Difference | Difference rate% |
| | 1 | Safety investment in personnel | 65.774 | 64.178 | 1.596 | 2.49 | | 2 | Safety investment in facilities | 170.85 | 156.142 | 14.708 | 9.42 | | 3 | Safety investment in management | 65.755 | 37.163 | 28.592 | 76.94 | | 4 | Safety investment in environmental enhancement | 0.939 | 0.792 | 0.147 | 18.56 |
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