Your protein needs are based on your weight and gender. Since you are male, you need around .80 grams of protein per kilo of bodyweight. If you weigh 80 kilos, or about 175 pounds, you need 64 grams of protein per day.
If you are trying to gain muscle, you need to increase your protein intake. Many strength athletes recommend at least 2 grams of protein per kilo to gain muscle. You can use those two figures as rough guidelines for planning your diet.