summarize calculated fields in footer

TextColumn::make('leads_sum_connect_req')
    ->sum('leads', 'connect_req')
    ->summarize(Sum::make()->label('ConnctReq'))
    ->label('ConnctReq')
    ->description('ConnctReq'),

TextColumn::make('leads_sum_connected')
    ->sum('leads', 'connected')
    ->summarize(Sum::make()->label('Connected'))
    ->label('Connected')
    ->description('Connected'),

TextColumn::make('connected_percent')
    ->state(function($record){
        return ( $record->leads_generated->sum('connected')) / ($record->leads_generated->sum('connection_request')+ .01) * 100;
    })
    ->sortable()
    ->numeric(decimalPlaces: 1)
    ->summarize(
        Summarizer::make()
        ->label('Connected %')
        ->using(function($record){  // , but [$record] was unresolvable.
            return 99.9 ; // to test
            return ( $record->leads_generated->sum('connected')) 
                  / ($record->leads_generated->sum('connection_request')+ .01) * 100;
        })
)

An attempt was made to evaluate a closure for [Filament\Tables\Columns\Summarizers\Summarizer], but [$record] was unresolvable.