function calculateCompoundInterest(principal, rate, years) {
// Validate input: all values must be non-negative
if (principal < 0 || rate < 0 || years < 0) {
console.error("Error: Principal, rate, and years must be non-negative values.");
return -1;
}
// Calculate total amount using the compound interest formula
const amount = principal * Math.pow(1 + rate / 100, years);
// Return compound interest (total amount - principal)
return amount - principal;
}
const principal = 120000; // Initial investment
const rate = 3.7; // Annual interest rate in percent
const years = 5; // Investment duration in years
const compoundInterest = calculateCompoundInterest(principal, rate, years);
if (compoundInterest >= 0) {
console.log(`Principal Amount: ${principal.toFixed(2)}`);
console.log(`Annual Interest Rate: ${rate.toFixed(2)}%`);
console.log(`Years: ${years.toFixed(2)}`);
console.log(`Compound Interest: ${compoundInterest.toFixed(2)}`);
console.log(`Total Amount: ${(principal + compoundInterest).toFixed(2)}`);
}
/*
run:
Principal Amount: 120000.00
Annual Interest Rate: 3.70%
Years: 5.00
Compound Interest: 23904.72
Total Amount: 143904.72
*/
