For some reason this script is not working and I was wondering if someone may guide me on fixing this?

In my Google Spreadsheets, I just want the value in cell A2 to send an email if it's greater than or equal to the value in B2. I have gotten it to work if it's a specific number or word but not sure if it what I'm doing wrong here to compare cells.

function ifstatement() { var ss = SpreadsheetApp.getActiveSpreadsheet(); var sheet = ss.getSheetByName("data"); var value = sheet.getRange("A2").getValue(); if(value >= "B2") sendEmail(value) }; function sendEmail(value){ var recipient="[email protected]"; var subject=" test subject " +value; var body=" test body "+value; MailApp.sendEmail(recipient, subject, body); };