function perNum (n1, n2) {

  let sumNum = 1;

  let sumNum2 = 1;

  console.log((recursion(n1) / recursion2(n2)).toFixed(2));


  function recursion (num) {

  if (num > 0) {

    recursion(num - 1);

    sumNum *= num;

  }

  return sumNum;

}


function recursion2 (num2) {

  if (num2 > 0) {

    recursion2(num2 - 1);

    sumNum2 *= num2;

  }

  return sumNum2;

}


}