function calculateCompoundInterest(
principal: number, // Initial amount of money
rate: number, // Annual interest rate in percent
years: number // Number of years the money is invested
): number {
// 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: number = principal * Math.pow(1 + rate / 100, years);
// Return compound interest (total amount - principal)
return amount - principal;
}
const principal: number = 100000;
const rate: number = 3.5;
const years: number = 5;
const compoundInterest: number = 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: 100000.00"
"Annual Interest Rate: 3.50%"
"Years: 5.00"
"Compound Interest: 18768.63"
"Total Amount: 118768.63"
*/
