How can I correlate the magnitudes of eigenvalues and sensitivity analysis?

I performed a sensitivity analysis of the power system model. I want to check the influence of parameter D on eigenvalues. I got some results, where, the magnitudes of eigenvalues and sensitivities are

Eigenvalue Sensitivities

1) -8.3+50i - 9+40i, respectively

2) -7.36+33i - 786+1250i, respectively

3) - 500 - 12+0i, respectively

From these result, how to conclude which eigenvalue is influence more by parameter D and why?