Simple Batch - Use a file to save variable

@echo off
:cls
cls
if exist text.sav goto loadandshow
title Enter your text to save it!
echo.
echo Enter your text to save it!
echo.
set /p text=Text:
if "%text%"=="" goto cls
echo set text=%text%>text.sav
cls
:loadandshow
ren text.sav text.bat
call text.bat
ren text.bat text.sav
echo Your save: %text%
echo.
pause>>nul
exit