In logistic regression you linearly regress the log odds, so the fitted coefficients are the "beta weights" for the log odds. So you can say that the "IV1 effect on the log odds of the DV is 11%, compared to IV2".
Now, the "log odds"-function (or "logit") is nonlinear, and thus is its inverse, the logistic sigmoid function $\sigma$. Thus, the effect on the DV, of a unit change in an IV, is not constant but depends on the value of the IV.
So, if you want to know the effect of a change in the IV $\mathbf x$ on the DV $y$ at the point $\mathbf x= \mathbf{x_0}$, you could compute the gradient of $\sigma(\beta\cdot\mathbf x)$ at $\mathbf{x_0}$, which gives you the linear approximation of the effects of all your scalar IVs at this particular value $\mathbf{x_0}$. Recall, that, if you have $k$ IVs, then $\mathbf x \in \mathbb{R}^{k+1}$, because an extra dimension is added for the intercept.