Battle System Algorythm, C#

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//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            
            int damageCalculator = 16;
            
            
            //Hero's attack
            int ATK = 20;
            
            //monster's defense
            int DEF = 15;
            
            //
            int armour = 20;
            float armourReduction = armour/ 3;
            armourReduction = 1 - armourReduction / 100;
            
            
            double baseDMG = 2;
            double statsPow = ((Math.Pow(ATK, 3)));
            
           // Console.WriteLine(statsPow);
            
            baseDMG = ((statsPow / 32 + 32) + damageCalculator / 16);
            
            //baseDMG = (((Math.Pow(127, double 3) / 32) + 32) x DmCon / 16);
            
            Console.WriteLine("Base Damage: " + baseDMG);

double calculatorDEF = ((Math.Pow((DEF - 280.4), 2) / 110) + 16);
            
            Console.WriteLine("Defense Contant" + calculatorDEF);
            
            Console.WriteLine(armourReduction);
            
            double finalDMG = ((baseDMG * calculatorDEF / 730) * armourReduction);
            
            Console.WriteLine("Final Damage: " + finalDMG);
                
                //Base Damage = 64043
            //I need to add armour element % e.g. 3 armour points = 1 % reduction
        }
    }
}

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Compilation time: 0.13 sec, absolute running time: 0.16 sec, cpu time: 0.11 sec, average memory usage: 16 Mb, average nr of threads: 4