NSPredicate does not work for filtering in ios

I have tried filtering NSPredicate. It doesn't work on NSMutableArray, but I tried on an array and it works fine.

Working code using array:

filterArray=[NSMutableArray arrayWithObjects:@"Yvan",@"Balu",@"Srinath",@"Aswin",@"Ram", nil];
NSPredicate *bPredicate =[NSPredicate predicateWithFormat:@"SELF beginswith[c] 'r'"];
NSArray *resultAr = [resultArray filteredArrayUsingPredicate:bPredicate];
NSLog(@"Output %@",resultAr);

      

        
        
        
      

    

correctly produces:

Output (
Srinath,
Ram
)

      

        
        
        
      

    

I've tried using NSMutableArray with dictionary data, but it doesn't work.

Framing the result array:

for(int i=0;i<[priceArray count];i++)
    {
        cellDict=[[NSMutableDictionary alloc]init];
        NSString *nameStr=nameArray[i];
        [cellDict setObject:nameStr forKey:@"Name"];
        [cellDict setObject:@([splPriceArray[i] intValue]) forKey:@"Percentage"];
        [cellDict setObject:@([priceArray[i] intValue]) forKey:@"Price"];
        [resultArray addObject:cellDict];
    }

      

        
        
        
      

    

Array of results:

(
        {
        Name = "Black Eyed Peas";
        Percentage = 0;
        Price = 80;
    },
        {
        Name = "Black Gram";
        Percentage = 0;
        Price = 56;
    },
        {
        Name = "Channa White";
        Percentage = 0;
        Price = 100;
    },
        {
        Name = "Double Beans";
        Percentage = 0;
        Price = 95;
    },
        {
        Name = "Gram Dall";
        Percentage = 0;
        Price = 100;
    },
        {
        Name = "Green Moong Dal";
        Percentage = 0;
        Price = 150;
    },
        {
        Name = "Ground Nut";
        Percentage = 0;
        Price = 140;
    },
        {
        Name = "Moong Dal";
        Percentage = 0;
        Price = 75;
    },
        {
        Name = "Orid Dal";
        Percentage = 0;
        Price = 100;
    },
        {
        Name = "Toor Dal";
        Percentage = 0;
        Price = 150;
    }
) 

      

        
        
        
      

    

Trial predicates:

//  NSPredicate *predit=[NSPredicate predicateWithFormat:@"Price contains[c] '100'"];

NSPredicate *pred=[NSPredicate predicateWithFormat:@"(Price == %@) AND (Percentage == %@)", @"100",@"0"];

NSArray *resultAr = [resultArray filteredArrayUsingPredicate:predit];

      

        
        
        
      

    

Is this correct above or is there a better way to implement it to get:

expected output:
(
            {
            Name = "Channa White";
            Percentage = 0;
            Price = 100;
        },
            {
            Name = "Gram Dall";
            Percentage = 0;
            Price = 100;
        },          
            {
            Name = "Orid Dal";
            Percentage = 0;
            Price = 100;
        }
)