Auto Populate a SharePoint New Form with the next sequential number. JQER20160401-001, JQER20160401-002, JQER20160401-003

I'm trying to auto populate a SharePoint New Form field with the next sequential number. I'm trying to do this every time a New Form is opened. I have a calculated field which gives me the TrackingNumberPrefix ---> =CONCATENATE(JQER-",TEXT(Created,"yyyy")&""&TEXT(Created,"mm")&""&TEXT(CREATED,"dd"))     Now I need to someway copy the calculated field and check if it has changed and increment it and place the combined sequential number into a New Form field. I'm thinking I'll have to use JavaScript. Any ideas would be appreciated!

JQER20160401-001, JQER-20160401-002, JQER20160401-003

Michael L. Williams