2x scaling of Monoprice Mini Select v2 Firmware v30.50b after factory reset?
Thanks for the comments!  They led me to find this solution using PuTTY on Windows as my serial (COM) terminal.  I guess one of my resets put the settings to 1/16th stepping whereas my hardware has 1/8th stepping.

&gt; M115
NAME: Malyan    VER: 3.0        MODEL: M200     HW: HA04
ok N0 P15 B15

&gt; M503
echo:Steps per unit:
echo:  M92 X93.00 Y93.00 Z1097.50 E97.00
echo:Maximum feedrates (mm/s):
echo:  M203 X150.00 Y150.00 Z1.50 E50.00
echo:Maximum Acceleration (mm/s2):
echo:  M201 X800 Y800 Z20 E10000
echo:Accelerations: P=printing, R=retract and T=travel
echo:  M204 P1500.00 R3000.00 T1500.00
echo:Advanced variables:
S=Min feedrate (mm/s),
T=Min travel feedrate (mm/s),
B=minimum segment time (ms),
X=maximum XY jerk (mm/s),
Z=maximum Z jerk (mm/s),
E=maximum E jerk (mm/s)
echo:  M205 S0.00 T0.00 B20000 X20.00 Z0.40 E5.00
echo:Home offset (mm):
echo:  M206 X0.00 Y0.00 Z0.00
echo:Invert axis: M562 XYZE
XYZABCD++-+-+-
echo:PID settings:
echo:  M301 P20.00 I0.02 D250.00 C100.00 L20
echo:  M304 P10.00 I0.02 D305.40
echo:Filament settings: Disabled
echo:  M200 D1.75
echo:  M200 D0
ok N0 P15 B15

&gt; M92 X46.50 Y46.50 Z548.75 E48.50 ; from https://www.mpselectmini.com/howto/steps_per_unit_mm
&gt; M562 Y ; Invert Y because it was Homing to the wrong corner
&gt; M206 X0.00 Y-2.00 Z0.00 ; Inverting the values from M114 once good Home manually found.
&gt; G0 X0 Y0 ; testing the range of motion
&gt; G0 X0 Y120 ; testing the range of motion
&gt; G0 X120 Y120 ; testing the range of motion
&gt; G0 X120 Y0 ; testing the range of motion
&gt; M500 ; this saves the new values to EEPROM
```