anchor.diff:  
   ::%1 - JPG|PNG|GIF
   :fincalc
  +if !step%~1! equ 1 set "step%~1=10"
   set /a "STotalSize%~1+=!TotalSize%~1!/!step%~1!"
   set /a "SImageSize%~1+=!ImageSize%~1!/!step%~1!"
   set /a "change%~1=(!SImageSize%~1!-!STotalSize%~1!)" 2>nul
  
positive.code: 	call:typelog jpg %%z
  	call:typelog gif %%z
  )
  echo.------------------------------------------------------------------------------
  call:setitle
  call:end
  call:dopause & exit /b
  
negative.code: set "fn="
  call:cropfilename fn %1 %TFN%
  set "origsize=%2"
  call:division origsize 1000 100
  set "origsize=          !origsize!"
  set "optsize=%3"
  call:division optsize 1000 100
  set "optsize=          !optsize!"
  set "change=%4"
  call:division change 1000 100
  set "change=          !change!"
  set "percent=          %5%%"
  echo. !fn:~,%TFN%!^|%origsize:~-11%^|%optsize:~-11%^|%change:~-10%^|%percent:~-10%
  