Dinamic scaling factor

Hy,
I'm working with a Fronius inverter where I've a power value and a scaling factor variable, according to sunssf the scaling factor is:"SunSpec scale factor as signed integer (16 bit). Scale factors are used as exponents of a power of ten. Negative scale factors push the decimal point to the left, positive scale factors to the righ"
How can I have at rultime the right power value?
I have to convert the power value to hex and flush the result?
There's a snippet about this? 
Hi Etantonio
Since the scale factor is dynamic. you will need to make a meta point, using the points.
add the 2 value to your meta points and then do something like this in your script.return powerValue * Math.pow(10, scalingFactor)