YDKJS - Up & Going - Challenge #1

phone.js

var bankAccount = prompt("How much money is in your bank account?");
var spendingLimit = prompt("What is the max amount mof money do you wish to spend?")
var phonePrice = 100, accessoryPrice = 20, taxRate = 0.06, cost = 0;

function finalCheckout(amt) {
	amt = amt + (amt * taxRate);

	if (amt < bankAccount)
		console.log("You can afford this!");
	else
		console.log("Unfortunately you cannot afford this. :(");
	
	amt = "$" + amt.toFixed(2);
	console.log("Your total is: " + amt);
}

// A loop to run until you cannot buy any more iPhones
while (spendingLimit>= phonePrice) {
		cost += phonePrice;
		spendingLimit -= phonePrice;
}

// Once out of phones, time to spend the rest on accessories
while (spendingLimit >= accessoryPrice) {
	cost += accessoryPrice;
	spendingLimit -= accessoryPrice;
}

finalCheckout(cost);

My function kinda sucks.