If the height of the template in Inkscape is the same as the font size in SCAL then your template should import at roughly 100%;
In Inkscape click on your finished template and make a note of the height, (if you are working in metric change your units to inches by clicking on the box on the top tool bar which will change units of measurement px /mm/cm/inches)
save as .svg
Open SCAL and in the Library window change the default font size to the height of your template.
Your file should now import at 100%.
This is especially useful for mats.
Susibi


Have just done another trial run to make sure I'm not talking through my hat!

Made a welded word in Inkscape which measured 4.444 x1.447 inches ( made metric then converted to inches before saving)
Opened SCAL set font size to 1.447 before importing.
File imported at 4.444 x 1.447.
Moved the red cursor further down the page in SCAL ready for importing the next template.
Went back to Inkscape, made a mat for my word and saved on separate page; mat measured 5.084x1.945 inches.
Went back to SCAL and changed the font measurement to 1.945 - the file imported at 4.94 x 1.945 so I adjusted the width to 5.084 in the properties box.
This does take the guess work of out making your welded words and mats and paper piecing - if they are in proportion in Inkscape they'll be in proportion in SCAL