Why double results when call echo to output to file?

@ECHO OFF
SETLOCAL EnableExtensions EnableDelayedExpansion
SET "InputFile=DiskDevices.ini"
IF EXIST "%InputFile%" (DEL /f /q "%InputFile%")
SET /A "TotalDevices=0"
SET /A "Index=0"
@FOR /F "skip=2 tokens=*" %%G IN ('
"WMIC PATH Win32_DiskDrive GET Index /format:csv 2>NUL"
') DO (
    SET /A "TotalDevices=TotalDevices+1"
    SET /A "Index=Index+1"
    >>"%InputFile%" CALL ECHO [Device_%%Index%%]
    @FOR /F Tokens^=* %%G IN ('
    "WMIC PATH Win32_DiskDrive GET Caption,Size /value 2>NUL"
    ') DO (
        @FOR /F Tokens^=* %%H IN ("%%G") DO (>>"%InputFile%" CALL ECHO %%H)
        )
)
>>"%InputFile%" CALL ECHO [Total Devices]
>>"%InputFile%" CALL ECHO Value=%%TotalDevices%%
PAUSE