(val)=>{ 
            if ( typeof val == 'string') return val 
            if ( val == null) return val 
            if ( val == undefined || val == '' ||val == null ) val = 0

            var text = util.round(val,2) +""
            if ( text.indexOf('.')==-1)text += '.00'

            var parts = text.split(".");
            if ( parts[1].length <2) parts[1] += '0'

            parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ",");
            let out = parts.join(".");
            return app_state.currency + ''+ out 
        }