call powershell with prompt window
powershell Compress-Archive "C:\price_approval" "C:\priceapprovalbackup\price_approval_%date:~0,4%%date:~5,2%%date:~8,2%%time:~0,2%%time:~3,2%%time:~6,2%.zip"
call powershell without prompt window
powershell -windowstyle hidden Compress-Archive "C:\price_approval" "C:\priceapprovalbackup\price_approval_%date:~0,4%%date:~5,2%%date:~8,2%%time:~0,2%%time:~3,2%%time:~6,2%.zip"