// The interest values
var icici_value = 0.0100;

// The actual formula
// @param float initial: initial savings amount
// @param float contribution: periodical contribution amount
// @param int period: period of contribution
// @param float rate: interest rate
// @return float result

function determineBalance(initial,period,rate) {
   var quarters = period / 3;
   var calc = Math.pow((1+(rate/4)),quarters);
   return initial*calc;
}

function determineEarnings(initial,period,rate) {
   return determineBalance(initial,period,rate)-initial;
}