Calculating future value with compound interest with JavaScript

Question

I\'m trying to work on a script where the user inserts a monthly income and gets the future value with compound interest after 30 years. As it is now, I\'ve assigned some values

Answer 1

Below is the code to calculate compound interest.

function calculate() {
  p = document.getElementById("p").value;
  n = document.getElementById("n").value; // no. of compoundings per year
  t = document.getElementById("t").value; // no. of years
  r = document.getElementById("r").value;
  result = document.getElementById("result");

  // The equation is A = p * [[1 + (r/n)] ^ nt]
  A = (p * Math.pow((1 + (r / (n * 100))), (n * t)));

  // toFixed is used for rounding the amount with two decimal places.
  result.innerHTML = "The total amount is " + A.toFixed(2);

  result.innerHTML += "
 The interest is " + (A.toFixed(2) - p).toFixed(2);
}

div {
  display: table-row;
}

label,
input {
  display: table-cell;
}

  


  
Compound Interest Calculation Using jQuery
  
 Amount:   
  
 Rate (%):   
  
 No. of Years:   
  
 Compunding Times Per Year:   

  Calculate