Common-emitter amplifier simulation is giving me the wrong result
The minimum β is 75, but the simulator model probably uses a &quot;typical&quot; value instead of the minimum value.
In fact, your simulator says it is &quot;powered by LTSpice&quot;, and the LTSPice 2N2222 model has a forward \$\beta\$ of 200:

In the real world, the \$\beta\$ parameter is not very well controlled from device to device, so we usually try to design our amplifiers so their gain does not depend strongly on \$\beta\$. That means the simple common-emitter stage you're learning about now isn't usually a good choice for a real world design.