set cell value google script

                                    var values = [
  ["2.000", "1,000,000", "$2.99"]
];

var range = sheet.getRange("B2:D2");
range.setValues(values);

                                    function storeValue() {
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  // ss is now the spreadsheet the script is associated with
  var sheet = ss.getSheets()[0]; // sheets are counted starting from 0
  // sheet is the first worksheet in the spreadsheet
  var cell = sheet.getRange("B2"); 
  cell.setValue(100);
}