Opamp inverter with bias voltage on non-inverting input
Your expression for the op-amp based LNA is correct, though I think writing it out in this form is makes it more clear what's going on.

$$ V_o = V_{com} - \left( V_i - V_{com} \right)\left( \dfrac{R_f}{R_{in}} \right) $$

You have a inverting amplifier with a gain of 10x referenced to \$ V_{com} \$.

This is done to allow for operation on a single supply rail, Vo can be above and below Vcom within reason.

The output of the transducer is AC not DC. If it were DC you would need a DC blocking cap on the input.

PS. Your table is slightly off, for Vi = 2.4V, Vo = 3.5V