Mathematics for IGCSE & O level - Percentages (Section 6 - No. 34)
What information is needed to find the value of an investment after a certain time, when using the compound interest formula?
Principal (P)
Rate of interest (r)
Time (n)
Total profit
Paskaidrojums
The compound interest formula (A = P(1+r/100)^n) requires P (principal), r (rate of interest), and n (time) as inputs.