Solution - Compound interest (basic)

27431.48

27431.48

Step-by-step explanation

Use $A = P {(1 + r / n)}^{(n t)}$ with $P = 12, 587$ , $r = 3 %$ , $n = 12$ , $t = 26$ .

Compute period rate and exponent: $\frac{r}{n} = 0.0025$ , $n t = 312$ , so the growth factor is $2.1793499014$ .

Multiply principal by growth factor: $12, 587$ × $2.1793499014$ = $27431.48$ .

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Compound interest appears in savings, loans, and investments. Understanding it builds strong financial literacy.