Compound Interest ची गणना कशी करावी
Compound Interest म्हणजे काय?
Compound interest calculates interest on both the initial principal and the previously accumulated interest. Unlike simple interest (which only grows on the principal), compound interest grows exponentially — your interest earns interest. Einstein reportedly called it "the eighth wonder of the world."
चरण-दर-चरण मार्गदर्शक
- 1Start with your principal amount P
- 2Determine the annual rate r and how often it compounds (n times per year)
- 3Apply the formula: A = P(1 + r/n)^(nt)
- 4The difference A − P is the total interest earned
Worked Examples
इनपुट
$1,000 at 5% for 10 years (annual)
परिणाम
$1,628.89
1000(1.05)¹⁰ — earned $628.89 interest
इनपुट
$1,000 at 5% for 10 years (monthly)
परिणाम
$1,647.01
Monthly compounding earns $18.12 more
इनपुट
$5,000 at 7% for 20 years (annual)
परिणाम
$19,348.42
Nearly 4× the initial investment
इनपुट
$100/month for 30 years at 8%
परिणाम
$149,035.94
Total invested: $36,000. Interest: $113,035
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