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Figure 7.

Coefficients of linear correlation, determination, and the level of significance of labor costs per employee with selected values
| Indicator | Linear correlation coefficient | Determination coefficient | Significance level |
|---|---|---|---|
| Sales revenues/Number of employees | 0.332 | 0.110 | p = 0.165 |
| Sales revenues/Salaries and employee benefits | 0.035 | 0.001 | p = 0.887 |
| Value added/Number of employees | 0.745 | 0.556 | p < 0.001 |
| Value added/Salaries and employee benefits | 0.439 | 0.193 | p = 0.060 |
| Tangible fixed assets/Number of employees | 0.050 | 0.003 | p = 0.839 |
| Tangible fixed assets/Salaries and employee benefits | −0.124 | 0.015 | p = 0.613 |
| Value added/Tangible fixed assets | 0.563 | 0.317 | p = 0.012 |