Hackish way to conver tom ascii code-point to raw int

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConvertByteArray
{
    public static class ByteUtils
    {
        // By : Ivandro Ismael.
        public static int ConvertByteCharsToInt()
        {
            var b = BitConverter.GetBytes(4);
            byte[] bufferDigits = { Convert.ToByte('4'), Convert.ToByte('5'), Convert.ToByte('0') };

            // Note: Each single byte represent a single digit (radix 10 base)
            // e.g: 450
            // 0x34 = 4, 0x35 = 5; 0x30. (three bytes to present 450)

            byte[] newBuffer = new byte[3];
            Array.Copy(bufferDigits, 0, newBuffer, 0, newBuffer.Length);
            //if (BitConverter.IsLittleEndian)
            //{
            //    Array.Reverse(bfr);
            //}
            int mask = ~0x30;
            newBuffer[0] = (byte)(newBuffer[0] & mask);
            newBuffer[1] = (byte)(newBuffer[1] & mask);
            newBuffer[2] = (byte)(newBuffer[2] & mask);

            // convert to decimal places
            int intResult = newBuffer[0] * 100 + newBuffer[1] * 10 + newBuffer[2];
            return intResult;
        }
    }
}
// Note: No refact were done!