anchor.diff:  set "measure="
   call:prepsize origsize measure
   call:prepsize2 optsize measure
  -set /a "change=%~4"
   set "origsize=          %origsize% %measure%"
   set "optsize=          %optsize% %measure%"
  +set "change=%~4"
  +set "origsize2=%~2"
   call:prepsize change measure
  +call:prepsize2 origsize2 measure
  +call:perccalc %origsize2:.=% %change:.=% percent
   set "change=           %change% %measure%"
  -set "percent=          %~5%%"
  +set "percent=          %percent%%%"
   echo. !fn:~,%TFN%!^|%origsize:~-10%^|%optsize:~-11%^|%change:~-11%^|%percent:~-10%
   endlocal
   exit /b
   
   ::%1 - variable name for number (in/out)
  -::%2 - cariable name for measure (out)
  +::%2 - variable name for measure (out)
   :prepsize
   setlocal
   set "var=!%~1!"
  
positive.code: :stepcalc
  set /a "TotalSize%~1+=%~2"
  set /a "ImageSize%~1+=%~3"
  if !ImageSize%~1! lss %BYTECONV% if !TotalSize%~1! lss %BYTECONV% exit /b
  if !stepB%~1! gtr 1 (
  	call:division2 TotalSize%~1 !stepB%~1! !step10%~1!
  
negative.code: 	set /a "STotalSize%~1/=10"
  	set /a "SImageSize%~1/=10"
  )
  ::echo.%~0: !STotalSize%~1!	!SImageSize%~1!	!step%~1!	!step10%~1!	!stepB%~1!
  exit /b
  
  ::%1 - JPG|PNG|GIF
  