The LIS2DH is an STMicro accelerometer that outputs data with the units of [mg/digit] while the MAXREFDES100 displays the data as a multiple 2^4 of the actual accelerometer output. To calculate the g-force using the displayed data, divide what's displayed by 2^4 and you obtain the force in milli-g's. Multiply by 1000 to obtain the g-force.
The reasoning behind this are the LIS2DH full-scale and resolution register settings. These are set at +/- 2.0 g's and 12-bit respectively via software. Further, the LIS2DH outputs data in a 2-byte length, 2's complement, left-justified format. This requires padding the 12-bit output result with four 0's on the LSB end which is why we divide the software result by 2^4 to obtain the actual result.