DPI Scale ColumnWidth RowHeight 72dpi 75% cw=(pix-5)/6 rh=pix*1 96dpi 100% cw=(pix-5)/8 rh=pix*0.75 120dpi 125% cw=(pix-7)/10 rh=pix*0.6 144dpi 150% cw=(pix-7)/12 rh=pix*0.5 192dpi 200% cw=(pix-9)/16 rh=pix*0.375